6y+2y-13=21

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Solution for 6y+2y-13=21 equation:


Simplifying
6y + 2y + -13 = 21

Reorder the terms:
-13 + 6y + 2y = 21

Combine like terms: 6y + 2y = 8y
-13 + 8y = 21

Solving
-13 + 8y = 21

Solving for variable 'y'.

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

Add '13' to each side of the equation.
-13 + 13 + 8y = 21 + 13

Combine like terms: -13 + 13 = 0
0 + 8y = 21 + 13
8y = 21 + 13

Combine like terms: 21 + 13 = 34
8y = 34

Divide each side by '8'.
y = 4.25

Simplifying
y = 4.25

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