1x+45=4(5-x)

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Solution for 1x+45=4(5-x) equation: 



1x+45=4(5-x)

We move all terms to the left:

1x+45-(4(5-x))=0

We add all the numbers together, and all the variables

1x-(4(-1x+5))+45=0

We add all the numbers together, and all the variables

x-(4(-1x+5))+45=0



We calculate terms in parentheses: -(4(-1x+5)), so:

4(-1x+5)

We multiply parentheses

-4x+20

Back to the equation:

-(-4x+20)



We get rid of parentheses

x+4x-20+45=0

We add all the numbers together, and all the variables

5x+25=0

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

5x=-25

x=-25/5

x=-5

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