4y-(7y+20)=3-(8y-4)

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Solution for 4y-(7y+20)=3-(8y-4) equation:


Simplifying
4y + -1(7y + 20) = 3 + -1(8y + -4)

Reorder the terms:
4y + -1(20 + 7y) = 3 + -1(8y + -4)
4y + (20 * -1 + 7y * -1) = 3 + -1(8y + -4)
4y + (-20 + -7y) = 3 + -1(8y + -4)

Reorder the terms:
-20 + 4y + -7y = 3 + -1(8y + -4)

Combine like terms: 4y + -7y = -3y
-20 + -3y = 3 + -1(8y + -4)

Reorder the terms:
-20 + -3y = 3 + -1(-4 + 8y)
-20 + -3y = 3 + (-4 * -1 + 8y * -1)
-20 + -3y = 3 + (4 + -8y)

Combine like terms: 3 + 4 = 7
-20 + -3y = 7 + -8y

Solving
-20 + -3y = 7 + -8y

Solving for variable 'y'.

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

Add '8y' to each side of the equation.
-20 + -3y + 8y = 7 + -8y + 8y

Combine like terms: -3y + 8y = 5y
-20 + 5y = 7 + -8y + 8y

Combine like terms: -8y + 8y = 0
-20 + 5y = 7 + 0
-20 + 5y = 7

Add '20' to each side of the equation.
-20 + 20 + 5y = 7 + 20

Combine like terms: -20 + 20 = 0
0 + 5y = 7 + 20
5y = 7 + 20

Combine like terms: 7 + 20 = 27
5y = 27

Divide each side by '5'.
y = 5.4

Simplifying
y = 5.4

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