-12x+3(x-5)+7x=7x-78

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Solution for -12x+3(x-5)+7x=7x-78 equation:


Simplifying
-12x + 3(x + -5) + 7x = 7x + -78

Reorder the terms:
-12x + 3(-5 + x) + 7x = 7x + -78
-12x + (-5 * 3 + x * 3) + 7x = 7x + -78
-12x + (-15 + 3x) + 7x = 7x + -78

Reorder the terms:
-15 + -12x + 3x + 7x = 7x + -78

Combine like terms: -12x + 3x = -9x
-15 + -9x + 7x = 7x + -78

Combine like terms: -9x + 7x = -2x
-15 + -2x = 7x + -78

Reorder the terms:
-15 + -2x = -78 + 7x

Solving
-15 + -2x = -78 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-15 + -2x + -7x = -78 + 7x + -7x

Combine like terms: -2x + -7x = -9x
-15 + -9x = -78 + 7x + -7x

Combine like terms: 7x + -7x = 0
-15 + -9x = -78 + 0
-15 + -9x = -78

Add '15' to each side of the equation.
-15 + 15 + -9x = -78 + 15

Combine like terms: -15 + 15 = 0
0 + -9x = -78 + 15
-9x = -78 + 15

Combine like terms: -78 + 15 = -63
-9x = -63

Divide each side by '-9'.
x = 7

Simplifying
x = 7

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