-78=6x-6(3x-7)

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Solution for -78=6x-6(3x-7) equation:


Simplifying
-78 = 6x + -6(3x + -7)

Reorder the terms:
-78 = 6x + -6(-7 + 3x)
-78 = 6x + (-7 * -6 + 3x * -6)
-78 = 6x + (42 + -18x)

Reorder the terms:
-78 = 42 + 6x + -18x

Combine like terms: 6x + -18x = -12x
-78 = 42 + -12x

Solving
-78 = 42 + -12x

Solving for variable 'x'.

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

Add '12x' to each side of the equation.
-78 + 12x = 42 + -12x + 12x

Combine like terms: -12x + 12x = 0
-78 + 12x = 42 + 0
-78 + 12x = 42

Add '78' to each side of the equation.
-78 + 78 + 12x = 42 + 78

Combine like terms: -78 + 78 = 0
0 + 12x = 42 + 78
12x = 42 + 78

Combine like terms: 42 + 78 = 120
12x = 120

Divide each side by '12'.
x = 10

Simplifying
x = 10

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