Help, lost with the second part of this:

Evaluate the expression:
If y=100 and z=200, what is the value 2y + 2z -100
Ok, maybe I have done too many math lessons in one day, but wwhhaatt?????
Thanks

1 answer

just substitute the given values and evaluate it ....

2y + 2z -100
= 2(100) + 2(200) - 100
= ...

you should be able to do this mentally
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