8+2x+4-8y+9=

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Solution for 8+2x+4-8y+9= equation:


Simplifying
8 + 2x + 4 + -8y + 9 = 0

Reorder the terms:
8 + 4 + 9 + 2x + -8y = 0

Combine like terms: 8 + 4 = 12
12 + 9 + 2x + -8y = 0

Combine like terms: 12 + 9 = 21
21 + 2x + -8y = 0

Solving
21 + 2x + -8y = 0

Solving for variable 'x'.

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

Add '-21' to each side of the equation.
21 + 2x + -21 + -8y = 0 + -21

Reorder the terms:
21 + -21 + 2x + -8y = 0 + -21

Combine like terms: 21 + -21 = 0
0 + 2x + -8y = 0 + -21
2x + -8y = 0 + -21

Combine like terms: 0 + -21 = -21
2x + -8y = -21

Add '8y' to each side of the equation.
2x + -8y + 8y = -21 + 8y

Combine like terms: -8y + 8y = 0
2x + 0 = -21 + 8y
2x = -21 + 8y

Divide each side by '2'.
x = -10.5 + 4y

Simplifying
x = -10.5 + 4y

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