3x+y+x+2y-1+8x-y=180

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Solution for 3x+y+x+2y-1+8x-y=180 equation: 


Simplifying
3x + y + x + 2y + -1 + 8x + -1y = 180

Reorder the terms:
-1 + 3x + x + 8x + y + 2y + -1y = 180

Combine like terms: 3x + x = 4x
-1 + 4x + 8x + y + 2y + -1y = 180

Combine like terms: 4x + 8x = 12x
-1 + 12x + y + 2y + -1y = 180

Combine like terms: y + 2y = 3y
-1 + 12x + 3y + -1y = 180

Combine like terms: 3y + -1y = 2y
-1 + 12x + 2y = 180

Solving
-1 + 12x + 2y = 180

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 12x + 1 + 2y = 180 + 1

Reorder the terms:
-1 + 1 + 12x + 2y = 180 + 1

Combine like terms: -1 + 1 = 0
0 + 12x + 2y = 180 + 1
12x + 2y = 180 + 1

Combine like terms: 180 + 1 = 181
12x + 2y = 181

Add '-2y' to each side of the equation.
12x + 2y + -2y = 181 + -2y

Combine like terms: 2y + -2y = 0
12x + 0 = 181 + -2y
12x = 181 + -2y

Divide each side by '12'.
x = 15.08333333 + -0.1666666667y

Simplifying
x = 15.08333333 + -0.1666666667y

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