3(7y-4)=9y

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Solution for 3(7y-4)=9y equation:


Simplifying
3(7y + -4) = 9y

Reorder the terms:
3(-4 + 7y) = 9y
(-4 * 3 + 7y * 3) = 9y
(-12 + 21y) = 9y

Solving
-12 + 21y = 9y

Solving for variable 'y'.

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

Add '-9y' to each side of the equation.
-12 + 21y + -9y = 9y + -9y

Combine like terms: 21y + -9y = 12y
-12 + 12y = 9y + -9y

Combine like terms: 9y + -9y = 0
-12 + 12y = 0

Add '12' to each side of the equation.
-12 + 12 + 12y = 0 + 12

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

Combine like terms: 0 + 12 = 12
12y = 12

Divide each side by '12'.
y = 1

Simplifying
y = 1

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