7x+2(-2x-9)=36

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Solution for 7x+2(-2x-9)=36 equation:


Simplifying
7x + 2(-2x + -9) = 36

Reorder the terms:
7x + 2(-9 + -2x) = 36
7x + (-9 * 2 + -2x * 2) = 36
7x + (-18 + -4x) = 36

Reorder the terms:
-18 + 7x + -4x = 36

Combine like terms: 7x + -4x = 3x
-18 + 3x = 36

Solving
-18 + 3x = 36

Solving for variable 'x'.

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

Add '18' to each side of the equation.
-18 + 18 + 3x = 36 + 18

Combine like terms: -18 + 18 = 0
0 + 3x = 36 + 18
3x = 36 + 18

Combine like terms: 36 + 18 = 54
3x = 54

Divide each side by '3'.
x = 18

Simplifying
x = 18

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