7y-2(y-5)=20

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Solution for 7y-2(y-5)=20 equation:


Simplifying
7y + -2(y + -5) = 20

Reorder the terms:
7y + -2(-5 + y) = 20
7y + (-5 * -2 + y * -2) = 20
7y + (10 + -2y) = 20

Reorder the terms:
10 + 7y + -2y = 20

Combine like terms: 7y + -2y = 5y
10 + 5y = 20

Solving
10 + 5y = 20

Solving for variable 'y'.

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

Add '-10' to each side of the equation.
10 + -10 + 5y = 20 + -10

Combine like terms: 10 + -10 = 0
0 + 5y = 20 + -10
5y = 20 + -10

Combine like terms: 20 + -10 = 10
5y = 10

Divide each side by '5'.
y = 2

Simplifying
y = 2

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