anita21 anita21

24-01-2017
Mathematics

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the sum of twice a number and 37 is 129.what is the number? show in algebra form.

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PsychrolutesMarcidus PsychrolutesMarcidus

24-01-2017

2n + 37 = 129
2n= 129-37
2n=92
n=\(\frac{92}{2}\)
= 46

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apologiabiology apologiabiology

24-01-2017

sum means add
twice a number is 2x

sum of twice a number and 37 is 129 means
2x+37=129
minus 37 both sides
2x=92
divide both sides by 2
x=46

the numbers i s46

Answer Link

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