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

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


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

Reorder the terms:
12 + -3(1 + 2x) = 7x + -3(7x + x)
12 + (1 * -3 + 2x * -3) = 7x + -3(7x + x)
12 + (-3 + -6x) = 7x + -3(7x + x)

Combine like terms: 12 + -3 = 9
9 + -6x = 7x + -3(7x + x)

Combine like terms: 7x + x = 8x
9 + -6x = 7x + -3(8x)

Remove parenthesis around (8x)
9 + -6x = 7x + -3 * 8x

Multiply -3 * 8
9 + -6x = 7x + -24x

Combine like terms: 7x + -24x = -17x
9 + -6x = -17x

Solving
9 + -6x = -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.
9 + -6x + 17x = -17x + 17x

Combine like terms: -6x + 17x = 11x
9 + 11x = -17x + 17x

Combine like terms: -17x + 17x = 0
9 + 11x = 0

Add '-9' to each side of the equation.
9 + -9 + 11x = 0 + -9

Combine like terms: 9 + -9 = 0
0 + 11x = 0 + -9
11x = 0 + -9

Combine like terms: 0 + -9 = -9
11x = -9

Divide each side by '11'.
x = -0.8181818182

Simplifying
x = -0.8181818182

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