20y-15y+2x+10y+21=180

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Solution for 20y-15y+2x+10y+21=180 equation:


Simplifying
20y + -15y + 2x + 10y + 21 = 180

Reorder the terms:
21 + 2x + 20y + -15y + 10y = 180

Combine like terms: 20y + -15y = 5y
21 + 2x + 5y + 10y = 180

Combine like terms: 5y + 10y = 15y
21 + 2x + 15y = 180

Solving
21 + 2x + 15y = 180

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 + 15y = 180 + -21

Reorder the terms:
21 + -21 + 2x + 15y = 180 + -21

Combine like terms: 21 + -21 = 0
0 + 2x + 15y = 180 + -21
2x + 15y = 180 + -21

Combine like terms: 180 + -21 = 159
2x + 15y = 159

Add '-15y' to each side of the equation.
2x + 15y + -15y = 159 + -15y

Combine like terms: 15y + -15y = 0
2x + 0 = 159 + -15y
2x = 159 + -15y

Divide each side by '2'.
x = 79.5 + -7.5y

Simplifying
x = 79.5 + -7.5y

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