3y-10+7y=20

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Solution for 3y-10+7y=20 equation:


Simplifying
3y + -10 + 7y = 20

Reorder the terms:
-10 + 3y + 7y = 20

Combine like terms: 3y + 7y = 10y
-10 + 10y = 20

Solving
-10 + 10y = 20

Solving for variable 'y'.

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

Add '10' to each side of the equation.
-10 + 10 + 10y = 20 + 10

Combine like terms: -10 + 10 = 0
0 + 10y = 20 + 10
10y = 20 + 10

Combine like terms: 20 + 10 = 30
10y = 30

Divide each side by '10'.
y = 3

Simplifying
y = 3

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