3(10y+2)=21

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Solution for 3(10y+2)=21 equation: 


Simplifying
3(10y + 2) = 21

Reorder the terms:
3(2 + 10y) = 21
(2 * 3 + 10y * 3) = 21
(6 + 30y) = 21

Solving
6 + 30y = 21

Solving for variable 'y'.

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

Add '-6' to each side of the equation.
6 + -6 + 30y = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 30y = 21 + -6
30y = 21 + -6

Combine like terms: 21 + -6 = 15
30y = 15

Divide each side by '30'.
y = 0.5

Simplifying
y = 0.5

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