3+7x+7y+8x+9=

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Solution for 3+7x+7y+8x+9= equation:


Simplifying
3 + 7x + 7y + 8x + 9 = 0

Reorder the terms:
3 + 9 + 7x + 8x + 7y = 0

Combine like terms: 3 + 9 = 12
12 + 7x + 8x + 7y = 0

Combine like terms: 7x + 8x = 15x
12 + 15x + 7y = 0

Solving
12 + 15x + 7y = 0

Solving for variable 'x'.

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

Add '-12' to each side of the equation.
12 + 15x + -12 + 7y = 0 + -12

Reorder the terms:
12 + -12 + 15x + 7y = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 15x + 7y = 0 + -12
15x + 7y = 0 + -12

Combine like terms: 0 + -12 = -12
15x + 7y = -12

Add '-7y' to each side of the equation.
15x + 7y + -7y = -12 + -7y

Combine like terms: 7y + -7y = 0
15x + 0 = -12 + -7y
15x = -12 + -7y

Divide each side by '15'.
x = -0.8 + -0.4666666667y

Simplifying
x = -0.8 + -0.4666666667y

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