-(-x-3)-2(x-4)=7

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Solution for -(-x-3)-2(x-4)=7 equation: 


Simplifying
-1(-1x + -3) + -2(x + -4) = 7

Reorder the terms:
-1(-3 + -1x) + -2(x + -4) = 7
(-3 * -1 + -1x * -1) + -2(x + -4) = 7
(3 + 1x) + -2(x + -4) = 7

Reorder the terms:
3 + 1x + -2(-4 + x) = 7
3 + 1x + (-4 * -2 + x * -2) = 7
3 + 1x + (8 + -2x) = 7

Reorder the terms:
3 + 8 + 1x + -2x = 7

Combine like terms: 3 + 8 = 11
11 + 1x + -2x = 7

Combine like terms: 1x + -2x = -1x
11 + -1x = 7

Solving
11 + -1x = 7

Solving for variable 'x'.

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

Add '-11' to each side of the equation.
11 + -11 + -1x = 7 + -11

Combine like terms: 11 + -11 = 0
0 + -1x = 7 + -11
-1x = 7 + -11

Combine like terms: 7 + -11 = -4
-1x = -4

Divide each side by '-1'.
x = 4

Simplifying
x = 4

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