-84=4(-3x+7)-4x

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Solution for -84=4(-3x+7)-4x equation:


Simplifying
-84 = 4(-3x + 7) + -4x

Reorder the terms:
-84 = 4(7 + -3x) + -4x
-84 = (7 * 4 + -3x * 4) + -4x
-84 = (28 + -12x) + -4x

Combine like terms: -12x + -4x = -16x
-84 = 28 + -16x

Solving
-84 = 28 + -16x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '16x' to each side of the equation.
-84 + 16x = 28 + -16x + 16x

Combine like terms: -16x + 16x = 0
-84 + 16x = 28 + 0
-84 + 16x = 28

Add '84' to each side of the equation.
-84 + 84 + 16x = 28 + 84

Combine like terms: -84 + 84 = 0
0 + 16x = 28 + 84
16x = 28 + 84

Combine like terms: 28 + 84 = 112
16x = 112

Divide each side by '16'.
x = 7

Simplifying
x = 7

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