Question

Which value is the solution for this equation? 1/2 (4x + 16) = 20 A) −1 B) 2 C) 4 D) 6

Answer 1

Answer:D

Explanation:

1/2(4) and 1/2(16) which is 2x+8=20

So subtract 8 on both sides and it will be 2x=12 and then divided 2 on both sides and your answer is x=6

Answer 2

x = 6

Explanation:

to evaluate this 1/2 (4x + 16) = 20 we need to open the bracket and then cross multiply and finally evaluate for the value of x

1/2 (4x + 16) = 20

4x + 16 = 2 x 20 ............................... using cross multiplication

4x + 16 = 40

combine the like terms together

4x = 40 -16

4x = 24

divide both sides by the coefficient of x

4x/4 = 24/4

x = 6

therefore the value of x in the expression 1/2 (4x + 16) = 20 is evaluated to be equals to 6