3(2y-1)+2y=21

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Solution for 3(2y-1)+2y=21 equation:


Simplifying
3(2y + -1) + 2y = 21

Reorder the terms:
3(-1 + 2y) + 2y = 21
(-1 * 3 + 2y * 3) + 2y = 21
(-3 + 6y) + 2y = 21

Combine like terms: 6y + 2y = 8y
-3 + 8y = 21

Solving
-3 + 8y = 21

Solving for variable 'y'.

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

Add '3' to each side of the equation.
-3 + 3 + 8y = 21 + 3

Combine like terms: -3 + 3 = 0
0 + 8y = 21 + 3
8y = 21 + 3

Combine like terms: 21 + 3 = 24
8y = 24

Divide each side by '8'.
y = 3

Simplifying
y = 3

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