-20=-9y-4y

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Solution for -20=-9y-4y equation:


Simplifying
-20 = -9y + -4y

Combine like terms: -9y + -4y = -13y
-20 = -13y

Solving
-20 = -13y

Solving for variable 'y'.

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

Add '13y' to each side of the equation.
-20 + 13y = -13y + 13y

Combine like terms: -13y + 13y = 0
-20 + 13y = 0

Add '20' to each side of the equation.
-20 + 20 + 13y = 0 + 20

Combine like terms: -20 + 20 = 0
0 + 13y = 0 + 20
13y = 0 + 20

Combine like terms: 0 + 20 = 20
13y = 20

Divide each side by '13'.
y = 1.538461538

Simplifying
y = 1.538461538

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