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what are you having trouble with?

you substitute the values given for the appropriate variable then follow PEMDAS

Substitute what values?

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x = -2, y = 3, and z = -2

the numbers are values

Ohh okay 1 sec

is it 9?

no, first just sub the values and rewrite the full expression with the x y z

i mean without the x y z

you can rewrite it here

do u understand what im asking?

4(-2) - 3 - 2(-2)

exactly! now do you know how to solve that?

I do the ones in parentheses first right?

I did that and I got 8 - 3 - -4

4 * -2 actually equals -8

Ohhhhh whoops

whenever you multiply a negative and a positive the answer is always negative

Oh so it';s -7?

boom! nice job

Haha, thanks!

:) good luck

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