21+5y-6=17y-9

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Solution for 21+5y-6=17y-9 equation:


Simplifying
21 + 5y + -6 = 17y + -9

Reorder the terms:
21 + -6 + 5y = 17y + -9

Combine like terms: 21 + -6 = 15
15 + 5y = 17y + -9

Reorder the terms:
15 + 5y = -9 + 17y

Solving
15 + 5y = -9 + 17y

Solving for variable 'y'.

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

Add '-17y' to each side of the equation.
15 + 5y + -17y = -9 + 17y + -17y

Combine like terms: 5y + -17y = -12y
15 + -12y = -9 + 17y + -17y

Combine like terms: 17y + -17y = 0
15 + -12y = -9 + 0
15 + -12y = -9

Add '-15' to each side of the equation.
15 + -15 + -12y = -9 + -15

Combine like terms: 15 + -15 = 0
0 + -12y = -9 + -15
-12y = -9 + -15

Combine like terms: -9 + -15 = -24
-12y = -24

Divide each side by '-12'.
y = 2

Simplifying
y = 2

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