Question

if x=2,y=0 and z=-1 , calculate the value of the algebraic expression 5x-2y+3z​

Answer 1

$\sf \: Answer$

I donno what makes this question tough for you you have an algebraic expression first of all, in terms of x, y and z, plus you have the values for these variables...may be you are not getting the correct answer because of wrong substitution.

5x - 2y + 3z

5(2) - 2(0) + 3(-1)

10 - 0 - 3 = 10 - 3 = 7