-31=7y+4(y-5)

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Solution for -31=7y+4(y-5) equation:


Simplifying
-31 = 7y + 4(y + -5)

Reorder the terms:
-31 = 7y + 4(-5 + y)
-31 = 7y + (-5 * 4 + y * 4)
-31 = 7y + (-20 + 4y)

Reorder the terms:
-31 = -20 + 7y + 4y

Combine like terms: 7y + 4y = 11y
-31 = -20 + 11y

Solving
-31 = -20 + 11y

Solving for variable 'y'.

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

Add '-11y' to each side of the equation.
-31 + -11y = -20 + 11y + -11y

Combine like terms: 11y + -11y = 0
-31 + -11y = -20 + 0
-31 + -11y = -20

Add '31' to each side of the equation.
-31 + 31 + -11y = -20 + 31

Combine like terms: -31 + 31 = 0
0 + -11y = -20 + 31
-11y = -20 + 31

Combine like terms: -20 + 31 = 11
-11y = 11

Divide each side by '-11'.
y = -1

Simplifying
y = -1

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