4x+12x-9=-15

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


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

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

Combine like terms: 4x + 12x = 16x
-9 + 16x = -15

Solving
-9 + 16x = -15

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + 16x = -15 + 9

Combine like terms: -9 + 9 = 0
0 + 16x = -15 + 9
16x = -15 + 9

Combine like terms: -15 + 9 = -6
16x = -6

Divide each side by '16'.
x = -0.375

Simplifying
x = -0.375

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