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wlad13 [49]
3 years ago
11

Three more than twice the sum of 7 and a number is 25 find the number

Mathematics
2 answers:
svetoff [14.1K]3 years ago
6 0

Answer:

the number is 4

Step-by-step explanation:

Hello,I think I can help you with this

Step 1

convert into mathematical terms

let x the unknown number

three more: 3 +

twice the sum of 7 and a number:2(7+x)

is 25:=25

Hence

3+2(7+x)=25

Step 2

Now, solve for x

3+14+2x=25

17+2x=25

2x=25-17

2x=8

x=8/2

x=4

the number is 4

Do not hesitate to ask me if you have any concerns

Have a great day.

anastassius [24]3 years ago
3 0
More means add so you add 3+
then you multiply 2
so now you have 3 + 2 x 7= 25
you can check it by doing 3 + 2= 5 x 7=25

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"If you subtract 17 from my number and multiply the difference by negative 4​, the result is negative 92​.

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(n-17)*(-4) = -92

distribute

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divide each side by -4

-4n/-4 = -160/-4

n = 40

Julio's number is 40


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