Evaluate expression

Question

(x-2y)+5y+4z; x = 2, y = 5, z = 8

Answer 1

(x-2y) + 5y + 4z

x = 2

y = 5

z = 8

Substitute the x, y, z values in given expression.

(2 - 2*5) + 5*5 + 4*8

= (2-10) + 25 + 32

= -8 + 25 + 32

= 49

 

Answer 2

Given expression is (x - 2y) + 5y + 4z

Given that x = 2 , y = 5 and z = 8

Substitute vales

(2 - 2(5)) + 5(5) + 4(8)

= (2 - 10) + 25 + 32

= (-8) + 25 +32

= 57 - 8

= 49