7. Which of the following is the solution of -4(5-2x) = 8?

A. 3.5
B. 2.5
C. -4

1 answer

Let's solve the equation step by step:

-4(5-2x) = 8

First, distribute -4 across the parentheses:

-20 + 8x = 8

Next, isolate the x-term by subtracting -20 from both sides:

8x = 28

To solve for x, divide both sides by 8:

x = 28/8

Simplifying the right side:

x = 3.5

Therefore, the solution to the equation is x = 3.5.

The correct answer is A. 3.5.