# Algebra 1 : How to solve one-step equations

## Example Questions

### Example Question #21 : Linear Equations

Solve for .

Explanation:

To isolate , we just subtract  on both sides.

The left side will just  be

We have

### Example Question #22 : Linear Equations

Solve for .

Explanation:

To isolate , we just add  on both sides.

The left side will just  be

We have

.

### Example Question #23 : Linear Equations

Solve for .

Explanation:

To isolate , we just subtract  on both sides. The left side will just  be . We have .

Remember, to deal with this strange subtraction, compare the values.  is greater than  and it's negative so the answer must be negative. We would proceed as a normal subtraction but later add the minus sign.

.

### Example Question #24 : Linear Equations

Solve for .

Explanation:

To isolate , we just add  on both sides. The left side will just  be . We have .

Remember, to deal with this strange addition, compare the values.  is greater than  and it's positie so the answer must be positive. We would proceed as a normal subtraction but later add the plus sign which is usually ignored.

.

### Example Question #25 : Linear Equations

Solve for .

Explanation:

To isolate , we just divide  on both sides.

The left side will just  be

We have

.

### Example Question #26 : Linear Equations

Solve for .

Explanation:

To isolate , we just divide  on both sides.

The left side will just  be

We have

### Example Question #27 : Linear Equations

Solve for .

Explanation:

To isolate , we just cross-multiply.

We will have

.

### Example Question #28 : Linear Equations

Solve for .

Explanation:

To isolate , we just cross-multiply.

We will have

.

We divide both sides by .

The left side is . The right side is

### Example Question #29 : Linear Equations

Solve for .

Explanation:

To isolate , we just cross-multiply.

We will have

.

Solve for .