Hey there :)
Before translating the sentence into mathematics, let r represent 'a number'
5 times a number = 5r
2 times that number = 2r
The difference between them = 5r - 2r
* Your equation
5r - 2r
* Solving the equation
= 5r - 2r
= 3r
we have the expression

Evaluate for x=-4/5 and y=1/3
substitute the values of x and y in the given expression

the answer is 32/15
Ok ok
90,000+8,000+700+60+5
ha ha :)
there u go