9-4(y+1)=31

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Solution for 9-4(y+1)=31 equation: 


Simplifying
9 + -4(y + 1) = 31

Reorder the terms:
9 + -4(1 + y) = 31
9 + (1 * -4 + y * -4) = 31
9 + (-4 + -4y) = 31

Combine like terms: 9 + -4 = 5
5 + -4y = 31

Solving
5 + -4y = 31

Solving for variable 'y'.

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

Add '-5' to each side of the equation.
5 + -5 + -4y = 31 + -5

Combine like terms: 5 + -5 = 0
0 + -4y = 31 + -5
-4y = 31 + -5

Combine like terms: 31 + -5 = 26
-4y = 26

Divide each side by '-4'.
y = -6.5

Simplifying
y = -6.5

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