4+(2(20-y))/4-5=7

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Solution for 4+(2(20-y))/4-5=7 equation: 



4+(2(20-y))/4-5=7

We move all terms to the left:

4+(2(20-y))/4-5-(7)=0

We add all the numbers together, and all the variables

(2(-1y+20))/4+4-5-7=0

We add all the numbers together, and all the variables

(2(-1y+20))/4-8=0

We multiply all the terms by the denominator


(2(-1y+20))-8*4=0



We calculate terms in parentheses: +(2(-1y+20)), so:

2(-1y+20)

We multiply parentheses

-2y+40

Back to the equation:

+(-2y+40)



We add all the numbers together, and all the variables

(-2y+40)-32=0

We get rid of parentheses

-2y+40-32=0

We add all the numbers together, and all the variables

-2y+8=0

We move all terms containing y to the left, all other terms to the right

-2y=-8

y=-8/-2

y=+4

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