4(5+y)=y-7

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Solution for 4(5+y)=y-7 equation:


Simplifying
4(5 + y) = y + -7
(5 * 4 + y * 4) = y + -7
(20 + 4y) = y + -7

Reorder the terms:
20 + 4y = -7 + y

Solving
20 + 4y = -7 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
20 + 4y + -1y = -7 + y + -1y

Combine like terms: 4y + -1y = 3y
20 + 3y = -7 + y + -1y

Combine like terms: y + -1y = 0
20 + 3y = -7 + 0
20 + 3y = -7

Add '-20' to each side of the equation.
20 + -20 + 3y = -7 + -20

Combine like terms: 20 + -20 = 0
0 + 3y = -7 + -20
3y = -7 + -20

Combine like terms: -7 + -20 = -27
3y = -27

Divide each side by '3'.
y = -9

Simplifying
y = -9

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