3(y-10)+1=9(y-8)

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Solution for 3(y-10)+1=9(y-8) equation:


Simplifying
3(y + -10) + 1 = 9(y + -8)

Reorder the terms:
3(-10 + y) + 1 = 9(y + -8)
(-10 * 3 + y * 3) + 1 = 9(y + -8)
(-30 + 3y) + 1 = 9(y + -8)

Reorder the terms:
-30 + 1 + 3y = 9(y + -8)

Combine like terms: -30 + 1 = -29
-29 + 3y = 9(y + -8)

Reorder the terms:
-29 + 3y = 9(-8 + y)
-29 + 3y = (-8 * 9 + y * 9)
-29 + 3y = (-72 + 9y)

Solving
-29 + 3y = -72 + 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.
-29 + 3y + -9y = -72 + 9y + -9y

Combine like terms: 3y + -9y = -6y
-29 + -6y = -72 + 9y + -9y

Combine like terms: 9y + -9y = 0
-29 + -6y = -72 + 0
-29 + -6y = -72

Add '29' to each side of the equation.
-29 + 29 + -6y = -72 + 29

Combine like terms: -29 + 29 = 0
0 + -6y = -72 + 29
-6y = -72 + 29

Combine like terms: -72 + 29 = -43
-6y = -43

Divide each side by '-6'.
y = 7.166666667

Simplifying
y = 7.166666667

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