9x+12-7x+15=-4

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Solution for 9x+12-7x+15=-4 equation:


Simplifying
9x + 12 + -7x + 15 = -4

Reorder the terms:
12 + 15 + 9x + -7x = -4

Combine like terms: 12 + 15 = 27
27 + 9x + -7x = -4

Combine like terms: 9x + -7x = 2x
27 + 2x = -4

Solving
27 + 2x = -4

Solving for variable 'x'.

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

Add '-27' to each side of the equation.
27 + -27 + 2x = -4 + -27

Combine like terms: 27 + -27 = 0
0 + 2x = -4 + -27
2x = -4 + -27

Combine like terms: -4 + -27 = -31
2x = -31

Divide each side by '2'.
x = -15.5

Simplifying
x = -15.5

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