-31-(2y-1)=3(y-1)+4y

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Solution for -31-(2y-1)=3(y-1)+4y equation:


Simplifying
-31 + -1(2y + -1) = 3(y + -1) + 4y

Reorder the terms:
-31 + -1(-1 + 2y) = 3(y + -1) + 4y
-31 + (-1 * -1 + 2y * -1) = 3(y + -1) + 4y
-31 + (1 + -2y) = 3(y + -1) + 4y

Combine like terms: -31 + 1 = -30
-30 + -2y = 3(y + -1) + 4y

Reorder the terms:
-30 + -2y = 3(-1 + y) + 4y
-30 + -2y = (-1 * 3 + y * 3) + 4y
-30 + -2y = (-3 + 3y) + 4y

Combine like terms: 3y + 4y = 7y
-30 + -2y = -3 + 7y

Solving
-30 + -2y = -3 + 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.
-30 + -2y + -7y = -3 + 7y + -7y

Combine like terms: -2y + -7y = -9y
-30 + -9y = -3 + 7y + -7y

Combine like terms: 7y + -7y = 0
-30 + -9y = -3 + 0
-30 + -9y = -3

Add '30' to each side of the equation.
-30 + 30 + -9y = -3 + 30

Combine like terms: -30 + 30 = 0
0 + -9y = -3 + 30
-9y = -3 + 30

Combine like terms: -3 + 30 = 27
-9y = 27

Divide each side by '-9'.
y = -3

Simplifying
y = -3

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