9y+3(y-4)=10(y-5)+7

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Solution for 9y+3(y-4)=10(y-5)+7 equation:


Simplifying
9y + 3(y + -4) = 10(y + -5) + 7

Reorder the terms:
9y + 3(-4 + y) = 10(y + -5) + 7
9y + (-4 * 3 + y * 3) = 10(y + -5) + 7
9y + (-12 + 3y) = 10(y + -5) + 7

Reorder the terms:
-12 + 9y + 3y = 10(y + -5) + 7

Combine like terms: 9y + 3y = 12y
-12 + 12y = 10(y + -5) + 7

Reorder the terms:
-12 + 12y = 10(-5 + y) + 7
-12 + 12y = (-5 * 10 + y * 10) + 7
-12 + 12y = (-50 + 10y) + 7

Reorder the terms:
-12 + 12y = -50 + 7 + 10y

Combine like terms: -50 + 7 = -43
-12 + 12y = -43 + 10y

Solving
-12 + 12y = -43 + 10y

Solving for variable 'y'.

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

Add '-10y' to each side of the equation.
-12 + 12y + -10y = -43 + 10y + -10y

Combine like terms: 12y + -10y = 2y
-12 + 2y = -43 + 10y + -10y

Combine like terms: 10y + -10y = 0
-12 + 2y = -43 + 0
-12 + 2y = -43

Add '12' to each side of the equation.
-12 + 12 + 2y = -43 + 12

Combine like terms: -12 + 12 = 0
0 + 2y = -43 + 12
2y = -43 + 12

Combine like terms: -43 + 12 = -31
2y = -31

Divide each side by '2'.
y = -15.5

Simplifying
y = -15.5

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