3 years ago

One number is 9 more than another. if the sum of the two numbers is 171, find the two numbers

1 answer:

4 0

Let x be the 1st number
x + 9 be the second number

Equation:
x + x+9 = 171

Solution:
2x + 9 = 171
2x = 171 - 9
2x = 162
x = 81
x + 9 = 90

81 + 90 = 171

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