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

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


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

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

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

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

Reorder the terms:
-36 + -13x = -5 + -7 + 1x + 1x

Combine like terms: -5 + -7 = -12
-36 + -13x = -12 + 1x + 1x

Combine like terms: 1x + 1x = 2x
-36 + -13x = -12 + 2x

Solving
-36 + -13x = -12 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
-36 + -13x + -2x = -12 + 2x + -2x

Combine like terms: -13x + -2x = -15x
-36 + -15x = -12 + 2x + -2x

Combine like terms: 2x + -2x = 0
-36 + -15x = -12 + 0
-36 + -15x = -12

Add '36' to each side of the equation.
-36 + 36 + -15x = -12 + 36

Combine like terms: -36 + 36 = 0
0 + -15x = -12 + 36
-15x = -12 + 36

Combine like terms: -12 + 36 = 24
-15x = 24

Divide each side by '-15'.
x = -1.6

Simplifying
x = -1.6

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