Answer:
x = 0.34
Step-by-step explanation:
Simplifying
4x + -4(7 + -5x) = -20
4x + (7 * -4 + -5x * -4) = -20
4x + (-28 + 20x) = -20
Reorder the terms:
-28 + 4x + 20x = -20
Combine like terms: 4x + 20x = 24x
-28 + 24x = -20
Solving
-28 + 24x = -20
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '28' to each side of the equation.
-28 + 28 + 24x = -20 + 28
Combine like terms: -28 + 28 = 0
0 + 24x = -20 + 28
24x = -20 + 28
Combine like terms: -20 + 28 = 8
24x = 8
Divide each side by '24'.
x = 0.3333333333
Simplifying
