Question

if 7 is subtracted from 5 times a number. the diffrence is 8 more than twice the number . Find the no

Answer 1

Answer:

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\::}}}}

Tofind:

The number.

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

Let the number be R.

According to the question:

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

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

\longmapsto\tt{3R\:=\:15}⟼3R=15

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

3

15

\longmapsto\tt{\pink{R\:=\:5}}⟼R=5

Thus,

The number is 5.