Answer:
The answer is D
Step-by-step explanation:
9(x + -3) + 28 = 4x + -3
Reorder the terms:
9(-3 + x) + 28 = 4x + -3
(-3 * 9 + x * 9) + 28 = 4x + -3
(-27 + 9x) + 28 = 4x + -3
Reorder the terms:
-27 + 28 + 9x = 4x + -3
Combine like terms: -27 + 28 = 1
1 + 9x = 4x + -3
Reorder the terms:
1 + 9x = -3 + 4x
Solving
1 + 9x = -3 + 4x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-4x' to each side of the equation.
1 + 9x + -4x = -3 + 4x + -4x
Combine like terms: 9x + -4x = 5x
1 + 5x = -3 + 4x + -4x
Combine like terms: 4x + -4x = 0
1 + 5x = -3 + 0
1 + 5x = -3
Add '-1' to each side of the equation.
1 + -1 + 5x = -3 + -1
Combine like terms: 1 + -1 = 0
0 + 5x = -3 + -1
5x = -3 + -1
Combine like terms: -3 + -1 = -4
5x = -4
Divide each side by '5'.
x = -0.8
Simplifying
x = -0.8
