-1=3x+7(2x+12)

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Solution for -1=3x+7(2x+12) equation:


Simplifying
-1 = 3x + 7(2x + 12)

Reorder the terms:
-1 = 3x + 7(12 + 2x)
-1 = 3x + (12 * 7 + 2x * 7)
-1 = 3x + (84 + 14x)

Reorder the terms:
-1 = 84 + 3x + 14x

Combine like terms: 3x + 14x = 17x
-1 = 84 + 17x

Solving
-1 = 84 + 17x

Solving for variable 'x'.

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

Add '-17x' to each side of the equation.
-1 + -17x = 84 + 17x + -17x

Combine like terms: 17x + -17x = 0
-1 + -17x = 84 + 0
-1 + -17x = 84

Add '1' to each side of the equation.
-1 + 1 + -17x = 84 + 1

Combine like terms: -1 + 1 = 0
0 + -17x = 84 + 1
-17x = 84 + 1

Combine like terms: 84 + 1 = 85
-17x = 85

Divide each side by '-17'.
x = -5

Simplifying
x = -5

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