7y-1=27

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Solution for 7y-1=27 equation: 


Simplifying
7y + -1 = 27

Reorder the terms:
-1 + 7y = 27

Solving
-1 + 7y = 27

Solving for variable 'y'.

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

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

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

Combine like terms: 27 + 1 = 28
7y = 28

Divide each side by '7'.
y = 4

Simplifying
y = 4

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