Question

When 5 is subtracted from twice a number 7 is obtained.find the number.

Answer 1

Answer:

2

Step-by-step explanation:

first we gave to add 5+2 then the answer will be 7

Answer 2

Let the number be x

2x - 5 = 7

2x = 7 + 5

x = 12 ÷ 2

x = 6

explanation of the solution

firstly we suppose the number from which 5 is reduced as x

according to the question it is given that when we subtract 5 from double of that number we get 7

then the equation we get is 2x - 5 = 7

then we will take 5 in right side and it's sign will change to +

after solving this we will have

2x = 12

then take 2 also in right side in division

and we will get the answer by solving it as 6