-4(y-3)+5(y-4)=12+7y

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Solution for -4(y-3)+5(y-4)=12+7y equation:


Simplifying
-4(y + -3) + 5(y + -4) = 12 + 7y

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

Reorder the terms:
12 + -4y + 5(-4 + y) = 12 + 7y
12 + -4y + (-4 * 5 + y * 5) = 12 + 7y
12 + -4y + (-20 + 5y) = 12 + 7y

Reorder the terms:
12 + -20 + -4y + 5y = 12 + 7y

Combine like terms: 12 + -20 = -8
-8 + -4y + 5y = 12 + 7y

Combine like terms: -4y + 5y = 1y
-8 + 1y = 12 + 7y

Solving
-8 + 1y = 12 + 7y

Solving for variable 'y'.

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

Add '-7y' to each side of the equation.
-8 + 1y + -7y = 12 + 7y + -7y

Combine like terms: 1y + -7y = -6y
-8 + -6y = 12 + 7y + -7y

Combine like terms: 7y + -7y = 0
-8 + -6y = 12 + 0
-8 + -6y = 12

Add '8' to each side of the equation.
-8 + 8 + -6y = 12 + 8

Combine like terms: -8 + 8 = 0
0 + -6y = 12 + 8
-6y = 12 + 8

Combine like terms: 12 + 8 = 20
-6y = 20

Divide each side by '-6'.
y = -3.333333333

Simplifying
y = -3.333333333

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