2x+3+x-1=20

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Solution for 2x+3+x-1=20 equation: 


Simplifying
2x + 3 + x + -1 = 20

Reorder the terms:
3 + -1 + 2x + x = 20

Combine like terms: 3 + -1 = 2
2 + 2x + x = 20

Combine like terms: 2x + x = 3x
2 + 3x = 20

Solving
2 + 3x = 20

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 + 3x = 20 + -2

Combine like terms: 2 + -2 = 0
0 + 3x = 20 + -2
3x = 20 + -2

Combine like terms: 20 + -2 = 18
3x = 18

Divide each side by '3'.
x = 6

Simplifying
x = 6

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