7x-(8+20x)=18

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Solution for 7x-(8+20x)=18 equation:


Simplifying
7x + -1(8 + 20x) = 18
7x + (8 * -1 + 20x * -1) = 18
7x + (-8 + -20x) = 18

Reorder the terms:
-8 + 7x + -20x = 18

Combine like terms: 7x + -20x = -13x
-8 + -13x = 18

Solving
-8 + -13x = 18

Solving for variable 'x'.

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

Add '8' to each side of the equation.
-8 + 8 + -13x = 18 + 8

Combine like terms: -8 + 8 = 0
0 + -13x = 18 + 8
-13x = 18 + 8

Combine like terms: 18 + 8 = 26
-13x = 26

Divide each side by '-13'.
x = -2

Simplifying
x = -2

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