3x+4=-5x-12

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Solution for 3x+4=-5x-12 equation:


Simplifying
3x + 4 = -5x + -12

Reorder the terms:
4 + 3x = -5x + -12

Reorder the terms:
4 + 3x = -12 + -5x

Solving
4 + 3x = -12 + -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
4 + 3x + 5x = -12 + -5x + 5x

Combine like terms: 3x + 5x = 8x
4 + 8x = -12 + -5x + 5x

Combine like terms: -5x + 5x = 0
4 + 8x = -12 + 0
4 + 8x = -12

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

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

Combine like terms: -12 + -4 = -16
8x = -16

Divide each side by '8'.
x = -2

Simplifying
x = -2

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