2(x+1)+2(x-2)=18

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Solution for 2(x+1)+2(x-2)=18 equation: 


Simplifying
2(x + 1) + 2(x + -2) = 18

Reorder the terms:
2(1 + x) + 2(x + -2) = 18
(1 * 2 + x * 2) + 2(x + -2) = 18
(2 + 2x) + 2(x + -2) = 18

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

Reorder the terms:
2 + -4 + 2x + 2x = 18

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

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

Solving
-2 + 4x = 18

Solving for variable 'x'.

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

Add '2' to each side of the equation.
-2 + 2 + 4x = 18 + 2

Combine like terms: -2 + 2 = 0
0 + 4x = 18 + 2
4x = 18 + 2

Combine like terms: 18 + 2 = 20
4x = 20

Divide each side by '4'.
x = 5

Simplifying
x = 5

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