57.5=52.5+0.21(x-15)

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Solution for 57.5=52.5+0.21(x-15) equation: 



57.5=52.5+0.21(x-15)

We move all terms to the left:

57.5-(52.5+0.21(x-15))=0



We calculate terms in parentheses: -(52.5+0.21(x-15)), so:

52.5+0.21(x-15)

determiningTheFunctionDomain
0.21(x-15)+52.5

We multiply parentheses

0.21x-3.15+52.5

We add all the numbers together, and all the variables

0.21x+49.35

Back to the equation:

-(0.21x+49.35)



We get rid of parentheses

-0.21x-49.35+57.5=0

We add all the numbers together, and all the variables

-0.21x+8.15=0

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

-0.21x=-8.15

x=-8.15/-0.21

x=38+0.17/0.21

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