7(-y+1)-3(4y-3)=-y+9-4y

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Solution for 7(-y+1)-3(4y-3)=-y+9-4y equation:


Simplifying
7(-1y + 1) + -3(4y + -3) = -1y + 9 + -4y

Reorder the terms:
7(1 + -1y) + -3(4y + -3) = -1y + 9 + -4y
(1 * 7 + -1y * 7) + -3(4y + -3) = -1y + 9 + -4y
(7 + -7y) + -3(4y + -3) = -1y + 9 + -4y

Reorder the terms:
7 + -7y + -3(-3 + 4y) = -1y + 9 + -4y
7 + -7y + (-3 * -3 + 4y * -3) = -1y + 9 + -4y
7 + -7y + (9 + -12y) = -1y + 9 + -4y

Reorder the terms:
7 + 9 + -7y + -12y = -1y + 9 + -4y

Combine like terms: 7 + 9 = 16
16 + -7y + -12y = -1y + 9 + -4y

Combine like terms: -7y + -12y = -19y
16 + -19y = -1y + 9 + -4y

Reorder the terms:
16 + -19y = 9 + -1y + -4y

Combine like terms: -1y + -4y = -5y
16 + -19y = 9 + -5y

Solving
16 + -19y = 9 + -5y

Solving for variable 'y'.

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

Add '5y' to each side of the equation.
16 + -19y + 5y = 9 + -5y + 5y

Combine like terms: -19y + 5y = -14y
16 + -14y = 9 + -5y + 5y

Combine like terms: -5y + 5y = 0
16 + -14y = 9 + 0
16 + -14y = 9

Add '-16' to each side of the equation.
16 + -16 + -14y = 9 + -16

Combine like terms: 16 + -16 = 0
0 + -14y = 9 + -16
-14y = 9 + -16

Combine like terms: 9 + -16 = -7
-14y = -7

Divide each side by '-14'.
y = 0.5

Simplifying
y = 0.5

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