6y-4+3y-2=21

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Solution for 6y-4+3y-2=21 equation:


Simplifying
6y + -4 + 3y + -2 = 21

Reorder the terms:
-4 + -2 + 6y + 3y = 21

Combine like terms: -4 + -2 = -6
-6 + 6y + 3y = 21

Combine like terms: 6y + 3y = 9y
-6 + 9y = 21

Solving
-6 + 9y = 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 + 9y = 21 + 6

Combine like terms: -6 + 6 = 0
0 + 9y = 21 + 6
9y = 21 + 6

Combine like terms: 21 + 6 = 27
9y = 27

Divide each side by '9'.
y = 3

Simplifying
y = 3

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