7(y-1)=8(y-4)-2

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Solution for 7(y-1)=8(y-4)-2 equation:


Simplifying
7(y + -1) = 8(y + -4) + -2

Reorder the terms:
7(-1 + y) = 8(y + -4) + -2
(-1 * 7 + y * 7) = 8(y + -4) + -2
(-7 + 7y) = 8(y + -4) + -2

Reorder the terms:
-7 + 7y = 8(-4 + y) + -2
-7 + 7y = (-4 * 8 + y * 8) + -2
-7 + 7y = (-32 + 8y) + -2

Reorder the terms:
-7 + 7y = -32 + -2 + 8y

Combine like terms: -32 + -2 = -34
-7 + 7y = -34 + 8y

Solving
-7 + 7y = -34 + 8y

Solving for variable 'y'.

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

Add '-8y' to each side of the equation.
-7 + 7y + -8y = -34 + 8y + -8y

Combine like terms: 7y + -8y = -1y
-7 + -1y = -34 + 8y + -8y

Combine like terms: 8y + -8y = 0
-7 + -1y = -34 + 0
-7 + -1y = -34

Add '7' to each side of the equation.
-7 + 7 + -1y = -34 + 7

Combine like terms: -7 + 7 = 0
0 + -1y = -34 + 7
-1y = -34 + 7

Combine like terms: -34 + 7 = -27
-1y = -27

Divide each side by '-1'.
y = 27

Simplifying
y = 27

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