Question

If x=8 then what is 5x-2x
Please i need help explain how to do

Answer 1

Insert 8 where x is using parenthesis

5(8) -2(8)

5(8) = 40

2(8) = 16

40 - 16 = 34

Your answer is 34 :)

Answer 2

Substitute 8 for x
5(8)-2(8)
Multiply
40- 16
Subtract
24