3+-2(x+3)=x-18

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Solution for 3+-2(x+3)=x-18 equation:


Simplifying
3 + -2(x + 3) = x + -18

Reorder the terms:
3 + -2(3 + x) = x + -18
3 + (3 * -2 + x * -2) = x + -18
3 + (-6 + -2x) = x + -18

Combine like terms: 3 + -6 = -3
-3 + -2x = x + -18

Reorder the terms:
-3 + -2x = -18 + x

Solving
-3 + -2x = -18 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-3 + -2x + -1x = -18 + x + -1x

Combine like terms: -2x + -1x = -3x
-3 + -3x = -18 + x + -1x

Combine like terms: x + -1x = 0
-3 + -3x = -18 + 0
-3 + -3x = -18

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

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

Combine like terms: -18 + 3 = -15
-3x = -15

Divide each side by '-3'.
x = 5

Simplifying
x = 5

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