27-y=7

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Solution for 27-y=7 equation: 


Simplifying
27 + -1y = 7

Solving
27 + -1y = 7

Solving for variable 'y'.

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

Add '-27' to each side of the equation.
27 + -27 + -1y = 7 + -27

Combine like terms: 27 + -27 = 0
0 + -1y = 7 + -27
-1y = 7 + -27

Combine like terms: 7 + -27 = -20
-1y = -20

Divide each side by '-1'.
y = 20

Simplifying
y = 20

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