(3x+7y)+(6x+2y)=4-4

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Solution for (3x+7y)+(6x+2y)=4-4 equation:


Simplifying
(3x + 7y) + (6x + 2y) = 4 + -4

Remove parenthesis around (3x + 7y)
3x + 7y + (6x + 2y) = 4 + -4

Remove parenthesis around (6x + 2y)
3x + 7y + 6x + 2y = 4 + -4

Reorder the terms:
3x + 6x + 7y + 2y = 4 + -4

Combine like terms: 3x + 6x = 9x
9x + 7y + 2y = 4 + -4

Combine like terms: 7y + 2y = 9y
9x + 9y = 4 + -4

Combine like terms: 4 + -4 = 0
9x + 9y = 0

Solving
9x + 9y = 0

Solving for variable 'x'.

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

Add '-9y' to each side of the equation.
9x + 9y + -9y = 0 + -9y

Combine like terms: 9y + -9y = 0
9x + 0 = 0 + -9y
9x = 0 + -9y
Remove the zero:
9x = -9y

Divide each side by '9'.
x = -1y

Simplifying
x = -1y

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