7y-1=5y+21

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Solution for 7y-1=5y+21 equation: 


Simplifying
7y + -1 = 5y + 21

Reorder the terms:
-1 + 7y = 5y + 21

Reorder the terms:
-1 + 7y = 21 + 5y

Solving
-1 + 7y = 21 + 5y

Solving for variable 'y'.

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

Add '-5y' to each side of the equation.
-1 + 7y + -5y = 21 + 5y + -5y

Combine like terms: 7y + -5y = 2y
-1 + 2y = 21 + 5y + -5y

Combine like terms: 5y + -5y = 0
-1 + 2y = 21 + 0
-1 + 2y = 21

Add '1' to each side of the equation.
-1 + 1 + 2y = 21 + 1

Combine like terms: -1 + 1 = 0
0 + 2y = 21 + 1
2y = 21 + 1

Combine like terms: 21 + 1 = 22
2y = 22

Divide each side by '2'.
y = 11

Simplifying
y = 11

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