5y+21+7y-1=180

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Solution for 5y+21+7y-1=180 equation:


Simplifying
5y + 21 + 7y + -1 = 180

Reorder the terms:
21 + -1 + 5y + 7y = 180

Combine like terms: 21 + -1 = 20
20 + 5y + 7y = 180

Combine like terms: 5y + 7y = 12y
20 + 12y = 180

Solving
20 + 12y = 180

Solving for variable 'y'.

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

Add '-20' to each side of the equation.
20 + -20 + 12y = 180 + -20

Combine like terms: 20 + -20 = 0
0 + 12y = 180 + -20
12y = 180 + -20

Combine like terms: 180 + -20 = 160
12y = 160

Divide each side by '12'.
y = 13.33333333

Simplifying
y = 13.33333333

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