(20-x)+7=23

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Solution for (20-x)+7=23 equation: 



(20-x)+7=23

We move all terms to the left:

(20-x)+7-(23)=0

We add all the numbers together, and all the variables

(-1x+20)+7-23=0

We add all the numbers together, and all the variables

(-1x+20)-16=0

We get rid of parentheses

-1x+20-16=0

We add all the numbers together, and all the variables

-1x+4=0

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

-x=-4

x=-4/-1

x=+4

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