18=x+x+4+x-1

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


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

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

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

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

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

Solving
18 = 3 + 3x

Solving for variable 'x'.

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

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

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

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

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

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

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

Simplifying
x = 5

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