5x-7x+3=x-9-12

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Solution for 5x-7x+3=x-9-12 equation:


Simplifying
5x + -7x + 3 = x + -9 + -12

Reorder the terms:
3 + 5x + -7x = x + -9 + -12

Combine like terms: 5x + -7x = -2x
3 + -2x = x + -9 + -12

Reorder the terms:
3 + -2x = -9 + -12 + x

Combine like terms: -9 + -12 = -21
3 + -2x = -21 + x

Solving
3 + -2x = -21 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
3 + -2x + -1x = -21 + x + -1x

Combine like terms: -2x + -1x = -3x
3 + -3x = -21 + x + -1x

Combine like terms: x + -1x = 0
3 + -3x = -21 + 0
3 + -3x = -21

Add '-3' to each side of the equation.
3 + -3 + -3x = -21 + -3

Combine like terms: 3 + -3 = 0
0 + -3x = -21 + -3
-3x = -21 + -3

Combine like terms: -21 + -3 = -24
-3x = -24

Divide each side by '-3'.
x = 8

Simplifying
x = 8

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