3(y-7)+2y=20

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Solution for 3(y-7)+2y=20 equation:


Simplifying
3(y + -7) + 2y = 20

Reorder the terms:
3(-7 + y) + 2y = 20
(-7 * 3 + y * 3) + 2y = 20
(-21 + 3y) + 2y = 20

Combine like terms: 3y + 2y = 5y
-21 + 5y = 20

Solving
-21 + 5y = 20

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 + 5y = 20 + 21

Combine like terms: -21 + 21 = 0
0 + 5y = 20 + 21
5y = 20 + 21

Combine like terms: 20 + 21 = 41
5y = 41

Divide each side by '5'.
y = 8.2

Simplifying
y = 8.2

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