9y-4(y-5)=40

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Solution for 9y-4(y-5)=40 equation:


Simplifying
9y + -4(y + -5) = 40

Reorder the terms:
9y + -4(-5 + y) = 40
9y + (-5 * -4 + y * -4) = 40
9y + (20 + -4y) = 40

Reorder the terms:
20 + 9y + -4y = 40

Combine like terms: 9y + -4y = 5y
20 + 5y = 40

Solving
20 + 5y = 40

Solving for variable 'y'.

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

Add '-20' to each side of the equation.
20 + -20 + 5y = 40 + -20

Combine like terms: 20 + -20 = 0
0 + 5y = 40 + -20
5y = 40 + -20

Combine like terms: 40 + -20 = 20
5y = 20

Divide each side by '5'.
y = 4

Simplifying
y = 4

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