-8y+7=-9y+4

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Solution for -8y+7=-9y+4 equation:


Simplifying
-8y + 7 = -9y + 4

Reorder the terms:
7 + -8y = -9y + 4

Reorder the terms:
7 + -8y = 4 + -9y

Solving
7 + -8y = 4 + -9y

Solving for variable 'y'.

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

Add '9y' to each side of the equation.
7 + -8y + 9y = 4 + -9y + 9y

Combine like terms: -8y + 9y = 1y
7 + 1y = 4 + -9y + 9y

Combine like terms: -9y + 9y = 0
7 + 1y = 4 + 0
7 + 1y = 4

Add '-7' to each side of the equation.
7 + -7 + 1y = 4 + -7

Combine like terms: 7 + -7 = 0
0 + 1y = 4 + -7
1y = 4 + -7

Combine like terms: 4 + -7 = -3
1y = -3

Divide each side by '1'.
y = -3

Simplifying
y = -3

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