20=4(y+8)-7y

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Solution for 20=4(y+8)-7y equation:


Simplifying
20 = 4(y + 8) + -7y

Reorder the terms:
20 = 4(8 + y) + -7y
20 = (8 * 4 + y * 4) + -7y
20 = (32 + 4y) + -7y

Combine like terms: 4y + -7y = -3y
20 = 32 + -3y

Solving
20 = 32 + -3y

Solving for variable 'y'.

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

Add '3y' to each side of the equation.
20 + 3y = 32 + -3y + 3y

Combine like terms: -3y + 3y = 0
20 + 3y = 32 + 0
20 + 3y = 32

Add '-20' to each side of the equation.
20 + -20 + 3y = 32 + -20

Combine like terms: 20 + -20 = 0
0 + 3y = 32 + -20
3y = 32 + -20

Combine like terms: 32 + -20 = 12
3y = 12

Divide each side by '3'.
y = 4

Simplifying
y = 4

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