3x+12=-2x-15

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Solution for 3x+12=-2x-15 equation:


Simplifying
3x + 12 = -2x + -15

Reorder the terms:
12 + 3x = -2x + -15

Reorder the terms:
12 + 3x = -15 + -2x

Solving
12 + 3x = -15 + -2x

Solving for variable 'x'.

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

Add '2x' to each side of the equation.
12 + 3x + 2x = -15 + -2x + 2x

Combine like terms: 3x + 2x = 5x
12 + 5x = -15 + -2x + 2x

Combine like terms: -2x + 2x = 0
12 + 5x = -15 + 0
12 + 5x = -15

Add '-12' to each side of the equation.
12 + -12 + 5x = -15 + -12

Combine like terms: 12 + -12 = 0
0 + 5x = -15 + -12
5x = -15 + -12

Combine like terms: -15 + -12 = -27
5x = -27

Divide each side by '5'.
x = -5.4

Simplifying
x = -5.4

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