3(y+7)=10y

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Solution for 3(y+7)=10y equation:


Simplifying
3(y + 7) = 10y

Reorder the terms:
3(7 + y) = 10y
(7 * 3 + y * 3) = 10y
(21 + 3y) = 10y

Solving
21 + 3y = 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.
21 + 3y + -10y = 10y + -10y

Combine like terms: 3y + -10y = -7y
21 + -7y = 10y + -10y

Combine like terms: 10y + -10y = 0
21 + -7y = 0

Add '-21' to each side of the equation.
21 + -21 + -7y = 0 + -21

Combine like terms: 21 + -21 = 0
0 + -7y = 0 + -21
-7y = 0 + -21

Combine like terms: 0 + -21 = -21
-7y = -21

Divide each side by '-7'.
y = 3

Simplifying
y = 3

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