(3x-1)-2(x+1)=4

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Solution for (3x-1)-2(x+1)=4 equation:


Simplifying
(3x + -1) + -2(x + 1) = 4

Reorder the terms:
(-1 + 3x) + -2(x + 1) = 4

Remove parenthesis around (-1 + 3x)
-1 + 3x + -2(x + 1) = 4

Reorder the terms:
-1 + 3x + -2(1 + x) = 4
-1 + 3x + (1 * -2 + x * -2) = 4
-1 + 3x + (-2 + -2x) = 4

Reorder the terms:
-1 + -2 + 3x + -2x = 4

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

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

Solving
-3 + 1x = 4

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 + 1x = 4 + 3

Combine like terms: -3 + 3 = 0
0 + 1x = 4 + 3
1x = 4 + 3

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

Divide each side by '1'.
x = 7

Simplifying
x = 7

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