7x-15x-15=18

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Solution for 7x-15x-15=18 equation:


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

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

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

Solving
-15 + -8x = 18

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + -8x = 18 + 15

Combine like terms: -15 + 15 = 0
0 + -8x = 18 + 15
-8x = 18 + 15

Combine like terms: 18 + 15 = 33
-8x = 33

Divide each side by '-8'.
x = -4.125

Simplifying
x = -4.125

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