-4(3x+15)+7y=20

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Solution for -4(3x+15)+7y=20 equation:


Simplifying
-4(3x + 15) + 7y = 20

Reorder the terms:
-4(15 + 3x) + 7y = 20
(15 * -4 + 3x * -4) + 7y = 20
(-60 + -12x) + 7y = 20

Solving
-60 + -12x + 7y = 20

Solving for variable 'x'.

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

Add '60' to each side of the equation.
-60 + -12x + 60 + 7y = 20 + 60

Reorder the terms:
-60 + 60 + -12x + 7y = 20 + 60

Combine like terms: -60 + 60 = 0
0 + -12x + 7y = 20 + 60
-12x + 7y = 20 + 60

Combine like terms: 20 + 60 = 80
-12x + 7y = 80

Add '-7y' to each side of the equation.
-12x + 7y + -7y = 80 + -7y

Combine like terms: 7y + -7y = 0
-12x + 0 = 80 + -7y
-12x = 80 + -7y

Divide each side by '-12'.
x = -6.666666667 + 0.5833333333y

Simplifying
x = -6.666666667 + 0.5833333333y

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