(7-y)+2y+y=69

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Solution for (7-y)+2y+y=69 equation:


Simplifying
(7 + -1y) + 2y + y = 69

Remove parenthesis around (7 + -1y)
7 + -1y + 2y + y = 69

Combine like terms: -1y + 2y = 1y
7 + 1y + y = 69

Combine like terms: 1y + y = 2y
7 + 2y = 69

Solving
7 + 2y = 69

Solving for variable 'y'.

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

Add '-7' to each side of the equation.
7 + -7 + 2y = 69 + -7

Combine like terms: 7 + -7 = 0
0 + 2y = 69 + -7
2y = 69 + -7

Combine like terms: 69 + -7 = 62
2y = 62

Divide each side by '2'.
y = 31

Simplifying
y = 31

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