3(10-2y)-y=10

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Solution for 3(10-2y)-y=10 equation: 


Simplifying
3(10 + -2y) + -1y = 10
(10 * 3 + -2y * 3) + -1y = 10
(30 + -6y) + -1y = 10

Combine like terms: -6y + -1y = -7y
30 + -7y = 10

Solving
30 + -7y = 10

Solving for variable 'y'.

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

Add '-30' to each side of the equation.
30 + -30 + -7y = 10 + -30

Combine like terms: 30 + -30 = 0
0 + -7y = 10 + -30
-7y = 10 + -30

Combine like terms: 10 + -30 = -20
-7y = -20

Divide each side by '-7'.
y = 2.857142857

Simplifying
y = 2.857142857

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