3x+(-x+1)=8

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Solution for 3x+(-x+1)=8 equation:


Simplifying
3x + (-1x + 1) = 8

Reorder the terms:
3x + (1 + -1x) = 8

Remove parenthesis around (1 + -1x)
3x + 1 + -1x = 8

Reorder the terms:
1 + 3x + -1x = 8

Combine like terms: 3x + -1x = 2x
1 + 2x = 8

Solving
1 + 2x = 8

Solving for variable 'x'.

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

Add '-1' to each side of the equation.
1 + -1 + 2x = 8 + -1

Combine like terms: 1 + -1 = 0
0 + 2x = 8 + -1
2x = 8 + -1

Combine like terms: 8 + -1 = 7
2x = 7

Divide each side by '2'.
x = 3.5

Simplifying
x = 3.5

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