3+7x-9-15x=18

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Solution for 3+7x-9-15x=18 equation:


Simplifying
3 + 7x + -9 + -15x = 18

Reorder the terms:
3 + -9 + 7x + -15x = 18

Combine like terms: 3 + -9 = -6
-6 + 7x + -15x = 18

Combine like terms: 7x + -15x = -8x
-6 + -8x = 18

Solving
-6 + -8x = 18

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + -8x = 18 + 6

Combine like terms: -6 + 6 = 0
0 + -8x = 18 + 6
-8x = 18 + 6

Combine like terms: 18 + 6 = 24
-8x = 24

Divide each side by '-8'.
x = -3

Simplifying
x = -3

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