-20=-4(y-10)

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Solution for -20=-4(y-10) equation:


Simplifying
-20 = -4(y + -10)

Reorder the terms:
-20 = -4(-10 + y)
-20 = (-10 * -4 + y * -4)
-20 = (40 + -4y)

Solving
-20 = 40 + -4y

Solving for variable 'y'.

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

Add '4y' to each side of the equation.
-20 + 4y = 40 + -4y + 4y

Combine like terms: -4y + 4y = 0
-20 + 4y = 40 + 0
-20 + 4y = 40

Add '20' to each side of the equation.
-20 + 20 + 4y = 40 + 20

Combine like terms: -20 + 20 = 0
0 + 4y = 40 + 20
4y = 40 + 20

Combine like terms: 40 + 20 = 60
4y = 60

Divide each side by '4'.
y = 15

Simplifying
y = 15

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