5(7-2y)+9y=31

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Solution for 5(7-2y)+9y=31 equation:


Simplifying
5(7 + -2y) + 9y = 31
(7 * 5 + -2y * 5) + 9y = 31
(35 + -10y) + 9y = 31

Combine like terms: -10y + 9y = -1y
35 + -1y = 31

Solving
35 + -1y = 31

Solving for variable 'y'.

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

Add '-35' to each side of the equation.
35 + -35 + -1y = 31 + -35

Combine like terms: 35 + -35 = 0
0 + -1y = 31 + -35
-1y = 31 + -35

Combine like terms: 31 + -35 = -4
-1y = -4

Divide each side by '-1'.
y = 4

Simplifying
y = 4

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