Question

amina thinks of a number and subtracts 5/2 from it. she multiplies the result by 8 . the result now obtained is 3 times another number she thought of. what is the number .​

Answer 1

Step-by-step explanation:

I think .....80.......

Answer 2

Step-by-step explanation:

let the number be x

now subtract 5/2 from x and multiply the result with 8 = (x-5/2)8

then three times of the number she thought = 3x

then the equation becomes

(x - 5/2)8=3x

(2x-5/2)8 = 3x here 2 and 8 will divide and gets 4 which will multiply with 2x-5 and become

8x-20 = 3x transfer 3x to LHS and 20 to RHS

8x -3x = 20

5x = 20

x =20/5

x = 4...