7x-(3x-4)=8x-12

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Solution for 7x-(3x-4)=8x-12 equation:


Simplifying
7x + -1(3x + -4) = 8x + -12

Reorder the terms:
7x + -1(-4 + 3x) = 8x + -12
7x + (-4 * -1 + 3x * -1) = 8x + -12
7x + (4 + -3x) = 8x + -12

Reorder the terms:
4 + 7x + -3x = 8x + -12

Combine like terms: 7x + -3x = 4x
4 + 4x = 8x + -12

Reorder the terms:
4 + 4x = -12 + 8x

Solving
4 + 4x = -12 + 8x

Solving for variable 'x'.

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

Add '-8x' to each side of the equation.
4 + 4x + -8x = -12 + 8x + -8x

Combine like terms: 4x + -8x = -4x
4 + -4x = -12 + 8x + -8x

Combine like terms: 8x + -8x = 0
4 + -4x = -12 + 0
4 + -4x = -12

Add '-4' to each side of the equation.
4 + -4 + -4x = -12 + -4

Combine like terms: 4 + -4 = 0
0 + -4x = -12 + -4
-4x = -12 + -4

Combine like terms: -12 + -4 = -16
-4x = -16

Divide each side by '-4'.
x = 4

Simplifying
x = 4

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