5x+3+7x=4x-9

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Solution for 5x+3+7x=4x-9 equation:


Simplifying
5x + 3 + 7x = 4x + -9

Reorder the terms:
3 + 5x + 7x = 4x + -9

Combine like terms: 5x + 7x = 12x
3 + 12x = 4x + -9

Reorder the terms:
3 + 12x = -9 + 4x

Solving
3 + 12x = -9 + 4x

Solving for variable 'x'.

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

Add '-4x' to each side of the equation.
3 + 12x + -4x = -9 + 4x + -4x

Combine like terms: 12x + -4x = 8x
3 + 8x = -9 + 4x + -4x

Combine like terms: 4x + -4x = 0
3 + 8x = -9 + 0
3 + 8x = -9

Add '-3' to each side of the equation.
3 + -3 + 8x = -9 + -3

Combine like terms: 3 + -3 = 0
0 + 8x = -9 + -3
8x = -9 + -3

Combine like terms: -9 + -3 = -12
8x = -12

Divide each side by '8'.
x = -1.5

Simplifying
x = -1.5

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