3x+4-2x-1=18

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Solution for 3x+4-2x-1=18 equation:


Simplifying
3x + 4 + -2x + -1 = 18

Reorder the terms:
4 + -1 + 3x + -2x = 18

Combine like terms: 4 + -1 = 3
3 + 3x + -2x = 18

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

Solving
3 + 1x = 18

Solving for variable 'x'.

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

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

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

Combine like terms: 18 + -3 = 15
1x = 15

Divide each side by '1'.
x = 15

Simplifying
x = 15

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