3x-12(3+x)-4x=-(-5-x)-(7-1)

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Solution for 3x-12(3+x)-4x=-(-5-x)-(7-1) equation:


Simplifying
3x + -12(3 + x) + -4x = -1(-5 + -1x) + -1(7 + -1)
3x + (3 * -12 + x * -12) + -4x = -1(-5 + -1x) + -1(7 + -1)
3x + (-36 + -12x) + -4x = -1(-5 + -1x) + -1(7 + -1)

Reorder the terms:
-36 + 3x + -12x + -4x = -1(-5 + -1x) + -1(7 + -1)

Combine like terms: 3x + -12x = -9x
-36 + -9x + -4x = -1(-5 + -1x) + -1(7 + -1)

Combine like terms: -9x + -4x = -13x
-36 + -13x = -1(-5 + -1x) + -1(7 + -1)
-36 + -13x = (-5 * -1 + -1x * -1) + -1(7 + -1)
-36 + -13x = (5 + 1x) + -1(7 + -1)

Combine like terms: 7 + -1 = 6
-36 + -13x = 5 + 1x + -1(6)

Multiply -1 * 6
-36 + -13x = 5 + 1x + -6

Reorder the terms:
-36 + -13x = 5 + -6 + 1x

Combine like terms: 5 + -6 = -1
-36 + -13x = -1 + 1x

Solving
-36 + -13x = -1 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-36 + -13x + -1x = -1 + 1x + -1x

Combine like terms: -13x + -1x = -14x
-36 + -14x = -1 + 1x + -1x

Combine like terms: 1x + -1x = 0
-36 + -14x = -1 + 0
-36 + -14x = -1

Add '36' to each side of the equation.
-36 + 36 + -14x = -1 + 36

Combine like terms: -36 + 36 = 0
0 + -14x = -1 + 36
-14x = -1 + 36

Combine like terms: -1 + 36 = 35
-14x = 35

Divide each side by '-14'.
x = -2.5

Simplifying
x = -2.5

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