7[6-(-6x-3)]=84x+84

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Solution for 7[6-(-6x-3)]=84x+84 equation:


Simplifying
7[6 + -1(-6x + -3)] = 84x + 84

Reorder the terms:
7[6 + -1(-3 + -6x)] = 84x + 84
7[6 + (-3 * -1 + -6x * -1)] = 84x + 84
7[6 + (3 + 6x)] = 84x + 84

Combine like terms: 6 + 3 = 9
7[9 + 6x] = 84x + 84
[9 * 7 + 6x * 7] = 84x + 84
[63 + 42x] = 84x + 84

Reorder the terms:
63 + 42x = 84 + 84x

Solving
63 + 42x = 84 + 84x

Solving for variable 'x'.

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

Add '-84x' to each side of the equation.
63 + 42x + -84x = 84 + 84x + -84x

Combine like terms: 42x + -84x = -42x
63 + -42x = 84 + 84x + -84x

Combine like terms: 84x + -84x = 0
63 + -42x = 84 + 0
63 + -42x = 84

Add '-63' to each side of the equation.
63 + -63 + -42x = 84 + -63

Combine like terms: 63 + -63 = 0
0 + -42x = 84 + -63
-42x = 84 + -63

Combine like terms: 84 + -63 = 21
-42x = 21

Divide each side by '-42'.
x = -0.5

Simplifying
x = -0.5

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