3x+(2x-3)-x=31

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Solution for 3x+(2x-3)-x=31 equation:


Simplifying
3x + (2x + -3) + -1x = 31

Reorder the terms:
3x + (-3 + 2x) + -1x = 31

Remove parenthesis around (-3 + 2x)
3x + -3 + 2x + -1x = 31

Reorder the terms:
-3 + 3x + 2x + -1x = 31

Combine like terms: 3x + 2x = 5x
-3 + 5x + -1x = 31

Combine like terms: 5x + -1x = 4x
-3 + 4x = 31

Solving
-3 + 4x = 31

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 + 4x = 31 + 3

Combine like terms: -3 + 3 = 0
0 + 4x = 31 + 3
4x = 31 + 3

Combine like terms: 31 + 3 = 34
4x = 34

Divide each side by '4'.
x = 8.5

Simplifying
x = 8.5

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