5y=10y+21

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Solution for 5y=10y+21 equation: 


Simplifying
5y = 10y + 21

Reorder the terms:
5y = 21 + 10y

Solving
5y = 21 + 10y

Solving for variable 'y'.

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

Add '-10y' to each side of the equation.
5y + -10y = 21 + 10y + -10y

Combine like terms: 5y + -10y = -5y
-5y = 21 + 10y + -10y

Combine like terms: 10y + -10y = 0
-5y = 21 + 0
-5y = 21

Divide each side by '-5'.
y = -4.2

Simplifying
y = -4.2

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