20=7+4(y-8)

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


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

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

Combine like terms: 7 + -32 = -25
20 = -25 + 4y

Solving
20 = -25 + 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 = -25 + 4y + -4y

Combine like terms: 4y + -4y = 0
20 + -4y = -25 + 0
20 + -4y = -25

Add '-20' to each side of the equation.
20 + -20 + -4y = -25 + -20

Combine like terms: 20 + -20 = 0
0 + -4y = -25 + -20
-4y = -25 + -20

Combine like terms: -25 + -20 = -45
-4y = -45

Divide each side by '-4'.
y = 11.25

Simplifying
y = 11.25

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