Let x = 10, y = 4, z = 2, and evaluate the following.
x − y + z =
What is 10 - 4 + 2 ?
do i subtract first or add?
i got two answers but i want to make sure. is it 4 or 8?
makes no difference which you do first
10 - 4 + 2
= 6 + 2
= 8
or
10 - 4 + 2
= 10 + 2 - 4
= 12 - 4
= 8
How could you get 4 ?
are you sure it doesnt make a difference? because for 4 years my teacher told me this that it does matter. soo.....
Please study the examples that Reiny posted. No matter which order you subtract and add, the answer is still the same.
i knoe but im still saying
You must be thinking of 4+2=6
10-6=4
but it's -4
so -4+2=-2
10-2=8.
thank you
To evaluate the expression x - y + z, we substitute the given values of x, y, and z into the expression and then perform the arithmetic operations.
Given:
x = 10
y = 4
z = 2
Substituting the values:
x - y + z = 10 - 4 + 2
We can now simplify the expression by performing the subtraction and addition:
10 - 4 + 2 = 6 + 2 = 8
Therefore, x - y + z is equal to 8.