7y=49+21y

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Solution for 7y=49+21y equation: 


Simplifying
7y = 49 + 21y

Solving
7y = 49 + 21y

Solving for variable 'y'.

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

Add '-21y' to each side of the equation.
7y + -21y = 49 + 21y + -21y

Combine like terms: 7y + -21y = -14y
-14y = 49 + 21y + -21y

Combine like terms: 21y + -21y = 0
-14y = 49 + 0
-14y = 49

Divide each side by '-14'.
y = -3.5

Simplifying
y = -3.5

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