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3 years ago

The second of two numbers is 10 more than 3 times first their sum is 70 find the numbers

1 answer:

8 0

Let the first number be represented by x and the second 10+3x
x+3x+10=70 10+3x=10+3(15)=10+45=55
4x+10=70 the two numbers are 15 and 55
4x+10-10=70-10
4x=60
4x/4=60/4
x=15

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