2x+2(x-9)=30

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Solution for 2x+2(x-9)=30 equation:


Simplifying
2x + 2(x + -9) = 30

Reorder the terms:
2x + 2(-9 + x) = 30
2x + (-9 * 2 + x * 2) = 30
2x + (-18 + 2x) = 30

Reorder the terms:
-18 + 2x + 2x = 30

Combine like terms: 2x + 2x = 4x
-18 + 4x = 30

Solving
-18 + 4x = 30

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 + 4x = 30 + 18

Combine like terms: -18 + 18 = 0
0 + 4x = 30 + 18
4x = 30 + 18

Combine like terms: 30 + 18 = 48
4x = 48

Divide each side by '4'.
x = 12

Simplifying
x = 12

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