# Common Core: 7th Grade Math : Describe Situations in Which Opposite Quantities Combine to Make 0: CCSS.Math.Content.7.NS.A.1a

## Example Questions

### Example Question #1 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

Compute the following:

Explanation:

Convert all the double signs to a single sign before solving. Remember, two minus (negative) signs combine to form a plus (positive) sign, and a plus (positive) sign and a minus (negative) sign combine to form a minus (negative) sign.

### Example Question #2 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal

Explanation:

In order to answer this question, we can solve for . When solving for  we need to isolate the  variable on one side of the equation.

We can subtract  to both sides in order to isolate the variable, .

### Example Question #3 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal

Explanation:

In order to answer this question, we can solve for . When solving for  we need to isolate the  variable on one side of the equation.

We can subtract  to both sides in order to isolate the variable, .

### Example Question #4 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal

Explanation:

In order to answer this question, we can solve for . When solving for  we need to isolate the  variable on one side of the equation.

We can subtract  to both sides in order to isolate the variable, .

### Example Question #5 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal

Explanation:

In order to answer this question, we can solve for . When solving for  we need to isolate the  variable on one side of the equation.

We can subtract  to both sides in order to isolate the variable, .

### Example Question #6 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal

Explanation:

In order to answer this question, we can solve for . When solving for  we need to isolate the  variable on one side of the equation.

We can subtract  to both sides in order to isolate the variable, .

### Example Question #7 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal

Explanation:

In order to answer this question, we can solve for . When solving for  we need to isolate the  variable on one side of the equation.

We can subtract  to both sides in order to isolate the variable, .

### Example Question #8 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal

Explanation:

In order to answer this question, we can solve for . When solving for  we need to isolate the  variable on one side of the equation.

We can subtract  to both sides in order to isolate the variable, .

### Example Question #9 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal

Explanation:

In order to answer this question, we can solve for . When solving for  we need to isolate the  variable on one side of the equation.

We can subtract  to both sides in order to isolate the variable, .

### Example Question #10 : Describe Situations In Which Opposite Quantities Combine To Make 0: Ccss.Math.Content.7.Ns.A.1a

For the equation provided, what value when substituted for , will equal