-3(x-5)-(-4x-5)=-7

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Solution for -3(x-5)-(-4x-5)=-7 equation: 


Simplifying
-3(x + -5) + -1(-4x + -5) = -7

Reorder the terms:
-3(-5 + x) + -1(-4x + -5) = -7
(-5 * -3 + x * -3) + -1(-4x + -5) = -7
(15 + -3x) + -1(-4x + -5) = -7

Reorder the terms:
15 + -3x + -1(-5 + -4x) = -7
15 + -3x + (-5 * -1 + -4x * -1) = -7
15 + -3x + (5 + 4x) = -7

Reorder the terms:
15 + 5 + -3x + 4x = -7

Combine like terms: 15 + 5 = 20
20 + -3x + 4x = -7

Combine like terms: -3x + 4x = 1x
20 + 1x = -7

Solving
20 + 1x = -7

Solving for variable 'x'.

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

Add '-20' to each side of the equation.
20 + -20 + 1x = -7 + -20

Combine like terms: 20 + -20 = 0
0 + 1x = -7 + -20
1x = -7 + -20

Combine like terms: -7 + -20 = -27
1x = -27

Divide each side by '1'.
x = -27

Simplifying
x = -27

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