IBEW Aptitude Test Solving Algebraic Equations Questions and Answers 2

Question 1

Solve for x: 5x - 3 = 22

Accepted Answer

x = 5

Answer

5x = 22 + 3 = 25. x = 25/5 = 5.

Question 2

Solve: 3(x + 4) = 21

Accepted Answer

x = 3

Answer

Distribute: 3x + 12 = 21. 3x = 9. x = 3.

Question 3

Solve for y: 4y - 7 = 2y + 9

Accepted Answer

y = 8

Answer

4y - 2y = 9 + 7. 2y = 16. y = 8.

Question 4

If 2x + 5 = 3x - 1, what is x?

Accepted Answer

x = 6

Answer

5 + 1 = 3x - 2x. 6 = x. So x = 6.

Question 5

Solve: x/4 + 3 = 7

Accepted Answer

x = 16

Answer

x/4 = 7 - 3 = 4. x = 4 × 4 = 16.

IBEW - Aptitude Test Practice Test