Question

If 7 is subtracted from 5 times a number , the difference is 8 more than twice the number . Find the mumber​

Answer 1

Answer:

let the no. be x.

then,5 times a no. = 5x

Now, according to question,

5x-7=8-2x

5x+2x=8+7

7x=15

x=15/7

x=8 hence, the required no. is 15/7 ..

Answer 2

$\bf{\Huge{\boxed{\bf{\green{ANSWER\::}}}}}}$

$\bf{\Large{\underline{\sf{Given\::}}}}$

If 7 is subtracted from 5 times a number, the difference is 8 more than twice the number.

$\bf{\Large{\underline{\bf{To\:find\::}}}}$

The number.

$\bf{\Large{\underline{\rm{\red{Explanation\::}}}}}}$

Let the number be R.

According to the question:

$\longmapsto\tt{5R\:-\:7\:=\:8\:+\:2R}$

$\longmapsto\tt{5R\:-\:2R\:=\:8+7}$

$\longmapsto\tt{3R\:=\:15}$

$\longmapsto\tt{R\:=\:\cancel{\frac{15}{3} }}$

$\longmapsto\tt{\pink{R\:=\:5}}$

Thus,

The number is 5.