Question

Evaluate the expression using the given value of the variable:[ z + (-1 (z - x)) ]; use [x = 4], and [z = 5] .

Answer 1

Plug in 4 for all the x values and 5 for all the z values in the equation given:

[z+(-1(z-x))] = [5 + (-1 (5 - 4))]

Solve using PEMDAS rules
= [5 + (-1 (5 - 4))]
= [5 + (-1 (1))]
= [5 + (-1)]
= [5 - 1]
= 4

Answer 2

[z+(-1( z-x))]

given,

z=5 X=4

[5+(-1(5-4))]

[5+(-1x(1))]

5+(-1)

5-1

4