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Seven times the sum of 3 and some number is 40. What is it?

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Seven times the sum of 3 and some number is 40. What is it?

Postby mwtarcia » Mon Jul 04, 2016 10:43 am

SEVEN TIMES THE SUM OF 3 AND SOME NUMBER IS 140. WHAT IS THE NUMBER
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Re: Seven times the sum of 3 and some number is 40. What is

Postby Guest » Tue Jul 05, 2016 7:20 am

Let x denote the number.

7(3 + x) = 140
21 + 7x = 140
7x = 140 - 21
7x = 119
x = 17

The number is 17
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