-20=4(y+4)-8y

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Solution for -20=4(y+4)-8y equation:


Simplifying
-20 = 4(y + 4) + -8y

Reorder the terms:
-20 = 4(4 + y) + -8y
-20 = (4 * 4 + y * 4) + -8y
-20 = (16 + 4y) + -8y

Combine like terms: 4y + -8y = -4y
-20 = 16 + -4y

Solving
-20 = 16 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
-20 + 4y = 16 + -4y + 4y

Combine like terms: -4y + 4y = 0
-20 + 4y = 16 + 0
-20 + 4y = 16

Add '20' to each side of the equation.
-20 + 20 + 4y = 16 + 20

Combine like terms: -20 + 20 = 0
0 + 4y = 16 + 20
4y = 16 + 20

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

Divide each side by '4'.
y = 9

Simplifying
y = 9

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