(9+y)=4(2y+5)

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Solution for (9+y)=4(2y+5) equation:


Simplifying
(9 + y) = 4(2y + 5)

Remove parenthesis around (9 + y)
9 + y = 4(2y + 5)

Reorder the terms:
9 + y = 4(5 + 2y)
9 + y = (5 * 4 + 2y * 4)
9 + y = (20 + 8y)

Solving
9 + y = 20 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
9 + y + -8y = 20 + 8y + -8y

Combine like terms: y + -8y = -7y
9 + -7y = 20 + 8y + -8y

Combine like terms: 8y + -8y = 0
9 + -7y = 20 + 0
9 + -7y = 20

Add '-9' to each side of the equation.
9 + -9 + -7y = 20 + -9

Combine like terms: 9 + -9 = 0
0 + -7y = 20 + -9
-7y = 20 + -9

Combine like terms: 20 + -9 = 11
-7y = 11

Divide each side by '-7'.
y = -1.571428571

Simplifying
y = -1.571428571

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