-3x-9=7x+15

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Solution for -3x-9=7x+15 equation:


Simplifying
-3x + -9 = 7x + 15

Reorder the terms:
-9 + -3x = 7x + 15

Reorder the terms:
-9 + -3x = 15 + 7x

Solving
-9 + -3x = 15 + 7x

Solving for variable 'x'.

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

Add '-7x' to each side of the equation.
-9 + -3x + -7x = 15 + 7x + -7x

Combine like terms: -3x + -7x = -10x
-9 + -10x = 15 + 7x + -7x

Combine like terms: 7x + -7x = 0
-9 + -10x = 15 + 0
-9 + -10x = 15

Add '9' to each side of the equation.
-9 + 9 + -10x = 15 + 9

Combine like terms: -9 + 9 = 0
0 + -10x = 15 + 9
-10x = 15 + 9

Combine like terms: 15 + 9 = 24
-10x = 24

Divide each side by '-10'.
x = -2.4

Simplifying
x = -2.4

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