(7y+8)-(3x+6y)=12

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Solution for (7y+8)-(3x+6y)=12 equation:


Simplifying
(7y + 8) + -1(3x + 6y) = 12

Reorder the terms:
(8 + 7y) + -1(3x + 6y) = 12

Remove parenthesis around (8 + 7y)
8 + 7y + -1(3x + 6y) = 12
8 + 7y + (3x * -1 + 6y * -1) = 12
8 + 7y + (-3x + -6y) = 12

Reorder the terms:
8 + -3x + 7y + -6y = 12

Combine like terms: 7y + -6y = 1y
8 + -3x + 1y = 12

Solving
8 + -3x + 1y = 12

Solving for variable 'x'.

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

Add '-8' to each side of the equation.
8 + -3x + -8 + 1y = 12 + -8

Reorder the terms:
8 + -8 + -3x + 1y = 12 + -8

Combine like terms: 8 + -8 = 0
0 + -3x + 1y = 12 + -8
-3x + 1y = 12 + -8

Combine like terms: 12 + -8 = 4
-3x + 1y = 4

Add '-1y' to each side of the equation.
-3x + 1y + -1y = 4 + -1y

Combine like terms: 1y + -1y = 0
-3x + 0 = 4 + -1y
-3x = 4 + -1y

Divide each side by '-3'.
x = -1.333333333 + 0.3333333333y

Simplifying
x = -1.333333333 + 0.3333333333y

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