6x-(31x-18)=12(x-1)+3x

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Solution for 6x-(31x-18)=12(x-1)+3x equation:


Simplifying
6x + -1(31x + -18) = 12(x + -1) + 3x

Reorder the terms:
6x + -1(-18 + 31x) = 12(x + -1) + 3x
6x + (-18 * -1 + 31x * -1) = 12(x + -1) + 3x
6x + (18 + -31x) = 12(x + -1) + 3x

Reorder the terms:
18 + 6x + -31x = 12(x + -1) + 3x

Combine like terms: 6x + -31x = -25x
18 + -25x = 12(x + -1) + 3x

Reorder the terms:
18 + -25x = 12(-1 + x) + 3x
18 + -25x = (-1 * 12 + x * 12) + 3x
18 + -25x = (-12 + 12x) + 3x

Combine like terms: 12x + 3x = 15x
18 + -25x = -12 + 15x

Solving
18 + -25x = -12 + 15x

Solving for variable 'x'.

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

Add '-15x' to each side of the equation.
18 + -25x + -15x = -12 + 15x + -15x

Combine like terms: -25x + -15x = -40x
18 + -40x = -12 + 15x + -15x

Combine like terms: 15x + -15x = 0
18 + -40x = -12 + 0
18 + -40x = -12

Add '-18' to each side of the equation.
18 + -18 + -40x = -12 + -18

Combine like terms: 18 + -18 = 0
0 + -40x = -12 + -18
-40x = -12 + -18

Combine like terms: -12 + -18 = -30
-40x = -30

Divide each side by '-40'.
x = 0.75

Simplifying
x = 0.75

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