Question

Evaluate the expression for x=5, y=-3 and z=7
x + y + z

Answer 1

9

Explanation:

convert all the value for x,y,z

5+-3+7

5+-3= 2+7 = 9

I used to decreased the negative 3 to 5 because of the sign negative attached beside the 3. but why the answer becomes to be positive 2? because the positive number which is 5 is greater than the negative 3 in the given.

I hope it helped you.

Answer 2

5

Explanation:

(Refer to image)

Replace the numbers with the variables and solve using order of operations