x+3+2x-18=

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


Simplifying
x + 3 + 2x + -18 = 0

Reorder the terms:
3 + -18 + x + 2x = 0

Combine like terms: 3 + -18 = -15
-15 + x + 2x = 0

Combine like terms: x + 2x = 3x
-15 + 3x = 0

Solving
-15 + 3x = 0

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + 3x = 0 + 15

Combine like terms: -15 + 15 = 0
0 + 3x = 0 + 15
3x = 0 + 15

Combine like terms: 0 + 15 = 15
3x = 15

Divide each side by '3'.
x = 5

Simplifying
x = 5

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