12x+(-12y)-5x-(-3y)+20=

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Solution for 12x+(-12y)-5x-(-3y)+20= equation:


Simplifying
12x + (-12y) + -5x + -1(-3y) + 20 = 0

Remove parenthesis around (-3y)
12x + (-12y) + -5x + -1 * -3y + 20 = 0

Multiply -1 * -3
12x + (-12y) + -5x + 3y + 20 = 0

Reorder the terms:
20 + 12x + -5x + (-12y) + 3y = 0

Combine like terms: 12x + -5x = 7x
20 + 7x + (-12y) + 3y = 0

Combine like terms: (-12y) + 3y = -9y
20 + 7x + -9y = 0

Solving
20 + 7x + -9y = 0

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 + 7x + -20 + -9y = 0 + -20

Reorder the terms:
20 + -20 + 7x + -9y = 0 + -20

Combine like terms: 20 + -20 = 0
0 + 7x + -9y = 0 + -20
7x + -9y = 0 + -20

Combine like terms: 0 + -20 = -20
7x + -9y = -20

Add '9y' to each side of the equation.
7x + -9y + 9y = -20 + 9y

Combine like terms: -9y + 9y = 0
7x + 0 = -20 + 9y
7x = -20 + 9y

Divide each side by '7'.
x = -2.857142857 + 1.285714286y

Simplifying
x = -2.857142857 + 1.285714286y

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