Question

solve for the variable. answers should be expressed as \x=____\.

1. $5x = 25$
2. $\frac{x}{7}= 5$
3. $x + 4 = 10$
4. $x - 7 = 16$
5. $8x = 80$
6. $\frac{x}{8}= 5$
7. $x - 3 = 11$
8. $4x = 44$
9. $\frac{x}{4}=8$
10. $x - 4 = 10$
11. $7 + x = 15$
12. $3x = 30$
13. $7x = 56$
14. $8x = 56$
15. $\frac{x}{5}= 12$
16. $x + 6 = 18$
17. $x - 2 = 17$
18. $\frac{x}{2}= 34$
19. $8x = 72$
20. $\frac{x}{5}= 20$

Explanation:

Problem 1: \( 5x = 25 \)

Step1: Divide both sides by 5

\( \frac{5x}{5} = \frac{25}{5} \)

Step2: Simplify

\( x = 5 \)

Step1: Subtract 4 from both sides

\( x + 4 - 4 = 10 - 4 \)

Step2: Simplify

\( x = 6 \)

Step1: Divide both sides by 8

\( \frac{8x}{8} = \frac{80}{8} \)

Step2: Simplify

\( x = 10 \)

Answer:

\( x = 5 \)

Problem 2: \( x + 4 = 10 \)