4(y-9)=-20

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


Simplifying
4(y + -9) = -20

Reorder the terms:
4(-9 + y) = -20
(-9 * 4 + y * 4) = -20
(-36 + 4y) = -20

Solving
-36 + 4y = -20

Solving for variable 'y'.

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

Add '36' to each side of the equation.
-36 + 36 + 4y = -20 + 36

Combine like terms: -36 + 36 = 0
0 + 4y = -20 + 36
4y = -20 + 36

Combine like terms: -20 + 36 = 16
4y = 16

Divide each side by '4'.
y = 4

Simplifying
y = 4

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