3y+1+y-9+20=180

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Solution for 3y+1+y-9+20=180 equation:


Simplifying
3y + 1 + y + -9 + 20 = 180

Reorder the terms:
1 + -9 + 20 + 3y + y = 180

Combine like terms: 1 + -9 = -8
-8 + 20 + 3y + y = 180

Combine like terms: -8 + 20 = 12
12 + 3y + y = 180

Combine like terms: 3y + y = 4y
12 + 4y = 180

Solving
12 + 4y = 180

Solving for variable 'y'.

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

Add '-12' to each side of the equation.
12 + -12 + 4y = 180 + -12

Combine like terms: 12 + -12 = 0
0 + 4y = 180 + -12
4y = 180 + -12

Combine like terms: 180 + -12 = 168
4y = 168

Divide each side by '4'.
y = 42

Simplifying
y = 42

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