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RSB [31]
3 years ago
9

If you add the digits in a two-digit number and multiply the sum by 7, the you get the original number. If you reverse the digit

s in the two digit number, the new number is 18 more than he sum if it’s two digit. What is the original number?
42
24
64
46
36
Mathematics
1 answer:
Serga [27]3 years ago
7 0
Hello!

Since when you multiply the number by 7 you get the original number the number is a multiple of 7

The only number that is a multiple of 7 is 42

The answer is 42

Hope this helps!
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4(a + 2) = 14 – 2(3 – 2a)<br><br> –2<br><br><br> –1<br><br><br> no solution<br><br> all real numbers
Ray Of Light [21]

All real numbers.

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Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

Expand: 4(a+2)=4a+8

Expand again: 14-2(3-2a)=4a+8

4a+8=4a+8

You subtract by 8 from both sides of an equation.

4a+8-8=4a+8-8

Simplify.

4a=4a

Then, subtract by 4a from both sides of an equation.

4a-4a=4a-4a

Finally, simplify.

4a-4a=0

0=0

True

All real numbers is the final answer.

Hope this helps you!

Have a nice day! :)

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garik1379 [7]
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Answer:

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Step-by-step explanation:

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Edit*

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