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24-10-2019
Mathematics

contestada

the sum of the product of a number and 9 and twice the number is 49

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24-10-2019

Answer:

Step-by-step explanation:

I got

44

and

5

Explanation:

Call the numbers

x

and

y

, you get:

x

+

y

=

49

x

=

8

y

+

4

substitute the second equation into the first:

8

y

+

4

+

y

=

49

9

y

=

45

y

=

45

9

=

5

so that:

x

=

8

⋅

5

+

4

=

44

Answer Link

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