7(5y-2)=21y

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Solution for 7(5y-2)=21y equation:


Simplifying
7(5y + -2) = 21y

Reorder the terms:
7(-2 + 5y) = 21y
(-2 * 7 + 5y * 7) = 21y
(-14 + 35y) = 21y

Solving
-14 + 35y = 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.
-14 + 35y + -21y = 21y + -21y

Combine like terms: 35y + -21y = 14y
-14 + 14y = 21y + -21y

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

Add '14' to each side of the equation.
-14 + 14 + 14y = 0 + 14

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

Combine like terms: 0 + 14 = 14
14y = 14

Divide each side by '14'.
y = 1

Simplifying
y = 1

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