3x-(1-x)=2x-7

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Solution for 3x-(1-x)=2x-7 equation:


Simplifying
3x + -1(1 + -1x) = 2x + -7
3x + (1 * -1 + -1x * -1) = 2x + -7
3x + (-1 + 1x) = 2x + -7

Reorder the terms:
-1 + 3x + 1x = 2x + -7

Combine like terms: 3x + 1x = 4x
-1 + 4x = 2x + -7

Reorder the terms:
-1 + 4x = -7 + 2x

Solving
-1 + 4x = -7 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-1 + 4x + -2x = -7 + 2x + -2x

Combine like terms: 4x + -2x = 2x
-1 + 2x = -7 + 2x + -2x

Combine like terms: 2x + -2x = 0
-1 + 2x = -7 + 0
-1 + 2x = -7

Add '1' to each side of the equation.
-1 + 1 + 2x = -7 + 1

Combine like terms: -1 + 1 = 0
0 + 2x = -7 + 1
2x = -7 + 1

Combine like terms: -7 + 1 = -6
2x = -6

Divide each side by '2'.
x = -3

Simplifying
x = -3

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