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

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


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

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

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

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

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

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

Solving
-4 + 1x = -7

Solving for variable 'x'.

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

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

Combine like terms: -4 + 4 = 0
0 + 1x = -7 + 4
1x = -7 + 4

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

Divide each side by '1'.
x = -3

Simplifying
x = -3

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