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brilliants [131]
3 years ago
10

Three less than triple a number is the same as the number plus 57. What is the number?

Mathematics
1 answer:
saw5 [17]3 years ago
3 0
Make this into an equation keeping the number as x
3x-3 = 57+x
3x-x = 57+3
2x=60
x= 30

prove this by substituting the x 
30*3 -3 =57+30
87=87
there you have it :)
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