3(y-7)-5y=31

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Solution for 3(y-7)-5y=31 equation: 


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

Reorder the terms:
3(-7 + y) + -5y = 31
(-7 * 3 + y * 3) + -5y = 31
(-21 + 3y) + -5y = 31

Combine like terms: 3y + -5y = -2y
-21 + -2y = 31

Solving
-21 + -2y = 31

Solving for variable 'y'.

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

Add '21' to each side of the equation.
-21 + 21 + -2y = 31 + 21

Combine like terms: -21 + 21 = 0
0 + -2y = 31 + 21
-2y = 31 + 21

Combine like terms: 31 + 21 = 52
-2y = 52

Divide each side by '-2'.
y = -26

Simplifying
y = -26

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