The sum of twice a number and 18 less than the number is the same as the difference between -10 and the number. what is the number?

n=-14

Step-by-step explanation:

2n+18-n=-10-n

n+18=-10-n

+n        +n

2n+18=-10

-18      -18

2n=-28

/2     /2

n=-14

number is n =2

Step-by-step explanation:

Let the number be n

According to the information given in the question we have following relation

Twice the number is 2n

18 less the number mean n- 18

Sum of two relation is equal to difference btween -10 and number n. therefore we have

2n + (n-18) = -10 -n solving above equation for n we have

4n = 8

n =2

option: d is the correct answer.

d) none of the above.

step-by-step explanation:

clearly from the figure attached to the question we could see that there is no shape given. hence without any shape given in the figure and after rotation we can't obtained a square pyramid.

since, to obtain a image we need a proper figure of the pre-image so that it can be transformed.

hence, the correct answer is:

d) none of the above.

step-by-step explanation:

x=-7

step-by-step explanation:

x+3=-10

-10+3=-7

x=-7