20-y=4+y

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Solution for 20-y=4+y equation:


Simplifying
20 + -1y = 4 + y

Solving
20 + -1y = 4 + 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 + -1y + -1y = 4 + y + -1y

Combine like terms: -1y + -1y = -2y
20 + -2y = 4 + y + -1y

Combine like terms: y + -1y = 0
20 + -2y = 4 + 0
20 + -2y = 4

Add '-20' to each side of the equation.
20 + -20 + -2y = 4 + -20

Combine like terms: 20 + -20 = 0
0 + -2y = 4 + -20
-2y = 4 + -20

Combine like terms: 4 + -20 = -16
-2y = -16

Divide each side by '-2'.
y = 8

Simplifying
y = 8

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