3(2+4y)=21

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Solution for 3(2+4y)=21 equation: 


Simplifying
3(2 + 4y) = 21
(2 * 3 + 4y * 3) = 21
(6 + 12y) = 21

Solving
6 + 12y = 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 + 12y = 21 + -6

Combine like terms: 6 + -6 = 0
0 + 12y = 21 + -6
12y = 21 + -6

Combine like terms: 21 + -6 = 15
12y = 15

Divide each side by '12'.
y = 1.25

Simplifying
y = 1.25

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