One-Step Equations - ISEE Lower Level Quantitative Reasoning

1. What is $x$ if $\frac{x}{2} = -9$?

   $x = -18$. Multiply both sides by 2 to isolate $x$ and handle the negative value.

2. What is $x$ if $\frac{x}{6} = 5$?

   $x = 30$. Multiply both sides by 6 to isolate $x$ and maintain equality.

3. What is $x$ if $x + \frac{1}{3} = \frac{5}{6}$?

   $x = \frac{1}{2}$. Subtract $\frac{1}{3}$ from both sides to isolate $x$ in the equation.

4. Find $x$ if $-x = 12$.

   $x = -12$. Multiply both sides by -1 to isolate $x$ and reverse the sign.

5. What is $x$ if $x + 15 = 6$?

   $x = -9$. Subtract 15 from both sides to solve for $x$ in the equation.

6. What is $x$ if $x - 9 = 4$?

   $x = 13$. Add 9 to both sides to isolate $x$ and maintain the equation's equality.

7. What is $x$ if $\frac{x}{4} = -\frac{3}{2}$?

   $x = -6$. Multiply both sides by 4 to solve for $x$ in the fractional equation.

8. What is $x$ if $x + 7 = 20$?

   $x = 13$. Subtract 7 from both sides to isolate $x$ while keeping the equation balanced.

9. What is $x$ if $\frac{x}{2} = 9$?

   $x = 18$. Multiply both sides by 2 to solve for $x$ in the division equation.

10. What is $x$ if $x + (-8) = 2$?

    $x = 10$. Add 8 to both sides to isolate $x$, as adding the opposite of -8 balances the equation.

11. What is $x$ if $-4x = 28$?

    $x = -7$. Divide both sides by -4 to solve for $x$ in the equation.

12. Identify $x$ if $x + 0.4 = 1.1$.

    $x = 0.7$. Subtract 0.4 from both sides to isolate $x$ in the decimal equation.

13. Identify $x$ if $0.5x = 9$.

    $x = 18$. Divide both sides by 0.5, equivalent to multiplying by 2, to solve for $x$.

14. What is $x$ if $x - (-5) = -1$?

    $x = -6$. Subtract 5 from both sides to isolate $x$, since subtracting a negative is adding.

15. What is $x$ if $\frac{x}{5} = \frac{7}{10}$?

    $x = \frac{7}{2}$. Multiply both sides by 5 to isolate $x$ and obtain the fraction.

16. Identify $x$ if $x - 2.5 = 0.3$.

    $x = 2.8$. Add 2.5 to both sides to solve for $x$ with decimals.

17. What is $x$ if $5x = 35$?

    $x = 7$. Divide both sides by 5 to find the value of $x$.

18. What is $x$ if $\frac{x}{10} = \frac{3}{5}$?

    $x = 6$. Multiply both sides by 10 to find $x$ in the fractional proportion.

19. What is $x$ if $x - \frac{3}{4} = \frac{1}{8}$?

    $x = \frac{7}{8}$. Add $\frac{3}{4}$ to both sides to solve for $x$ with fractions.

20. What is $x$ if $\frac{x}{-3} = 8$?

    $x = -24$. Multiply both sides by -3 to find the value of $x$.

21. What is $x$ if $x - 12 = -3$?

    $x = 9$. Add 12 to both sides to isolate $x$ and preserve balance.

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