6x-4(4x+9)=84

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Solution for 6x-4(4x+9)=84 equation:


Simplifying
6x + -4(4x + 9) = 84

Reorder the terms:
6x + -4(9 + 4x) = 84
6x + (9 * -4 + 4x * -4) = 84
6x + (-36 + -16x) = 84

Reorder the terms:
-36 + 6x + -16x = 84

Combine like terms: 6x + -16x = -10x
-36 + -10x = 84

Solving
-36 + -10x = 84

Solving for variable 'x'.

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

Add '36' to each side of the equation.
-36 + 36 + -10x = 84 + 36

Combine like terms: -36 + 36 = 0
0 + -10x = 84 + 36
-10x = 84 + 36

Combine like terms: 84 + 36 = 120
-10x = 120

Divide each side by '-10'.
x = -12

Simplifying
x = -12

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