20y-[10(7-y)-18]=5y+2(5-3y)

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Solution for 20y-[10(7-y)-18]=5y+2(5-3y) equation:


Simplifying
20y + -1[10(7 + -1y) + -18] = 5y + 2(5 + -3y)
20y + -1[(7 * 10 + -1y * 10) + -18] = 5y + 2(5 + -3y)
20y + -1[(70 + -10y) + -18] = 5y + 2(5 + -3y)

Reorder the terms:
20y + -1[70 + -18 + -10y] = 5y + 2(5 + -3y)

Combine like terms: 70 + -18 = 52
20y + -1[52 + -10y] = 5y + 2(5 + -3y)
20y + [52 * -1 + -10y * -1] = 5y + 2(5 + -3y)
20y + [-52 + 10y] = 5y + 2(5 + -3y)

Reorder the terms:
-52 + 20y + 10y = 5y + 2(5 + -3y)

Combine like terms: 20y + 10y = 30y
-52 + 30y = 5y + 2(5 + -3y)
-52 + 30y = 5y + (5 * 2 + -3y * 2)
-52 + 30y = 5y + (10 + -6y)

Reorder the terms:
-52 + 30y = 10 + 5y + -6y

Combine like terms: 5y + -6y = -1y
-52 + 30y = 10 + -1y

Solving
-52 + 30y = 10 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
-52 + 30y + y = 10 + -1y + y

Combine like terms: 30y + y = 31y
-52 + 31y = 10 + -1y + y

Combine like terms: -1y + y = 0
-52 + 31y = 10 + 0
-52 + 31y = 10

Add '52' to each side of the equation.
-52 + 52 + 31y = 10 + 52

Combine like terms: -52 + 52 = 0
0 + 31y = 10 + 52
31y = 10 + 52

Combine like terms: 10 + 52 = 62
31y = 62

Divide each side by '31'.
y = 2

Simplifying
y = 2

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