Emllyk
Evaluate the expression, using the given value of the variable.
3 – 7x + 2x when x = 3
A.
–30
B.
–12
C.
–18
D.
–24
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PigPresident
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it is going to look like this right:
3 - 7 * 3 + 2 * 3
Emllyk
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i think so... idk my math grades went down hill after 5th grade so i have no idea
PigPresident
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what grade r u in?
Emllyk
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7th...
PigPresident
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i am in 7th grade and math is my best subject...
PigPresident
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oh COOL!!
Emllyk
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Im a nerd in ALL other classes tho its just when the alphabet became a grade i paniced
PigPresident
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try evaluating what i told u just TRY
Emllyk
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I just need the answer tho
froggyfroggy
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hmm
PigPresident
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ohh dont worry u will get better trust me.. just like me in 4th grade i was always getting f and d's i promise..
PigPresident
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just try
Emllyk
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umm 15
Emllyk
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I HAVE NO CLEAR IDEA MY MIND IS FOGGED
PigPresident
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let me try it..
PigPresident
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remember PEMDAS
Emllyk
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sorry caps
PigPresident
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follow that order
Emllyk
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what on this great planet is that?
PigPresident
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P
Parentheses first
E
Exponents (ie Powers and Square Roots, etc.)
MD
Multiplication and Division (left-to-right)
AS
Addition and Subtraction (left-to-right)
WOAH U NEVER LEARNED IT WOW!!
Emllyk
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i WAS smart in gt to its math kicks me un the hind end...
DontLikeMathButOhWell
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1
3-7(3)+2(3)
PEMDAS
-7 x 3 = -21
3-21+2(3)
2 x 3 = 6
3-21+6 = -12
Your answer is B
PigPresident
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yup u r correct bc a negative * a Positive is A Negative
Emllyk
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thank you soo much
Emllyk
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sorry got mad...
PigPresident
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what?
PigPresident
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ok
Emllyk
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pig presedent i have no idea what u said about please excuse my dear aunt sally
Emllyk
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Evaluate the expression, using the given value of the variable.
z ÷ 2 – 4z + 3(z – 3) when z = 8
A.
–17
B.
–13
C.
–7
D.
–1
this one :D
Emllyk
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i cant other sights are blocked.
PigPresident
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oh like me too...my parents r like that
PigPresident
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but this is school related
Emllyk
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cant mom doesnt want me 2
PigPresident
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ok