3y+7y+20=0

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Solution for 3y+7y+20=0 equation:


Simplifying
3y + 7y + 20 = 0

Reorder the terms:
20 + 3y + 7y = 0

Combine like terms: 3y + 7y = 10y
20 + 10y = 0

Solving
20 + 10y = 0

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 + 10y = 0 + -20

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

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

Divide each side by '10'.
y = -2

Simplifying
y = -2

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