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PLEASE HELP! WILL MEDAL! Image below

Mathematics
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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why do you think it's C ??
Accidentally clicked on it, didn't mean to
i mean B which is step 3
so that was a guess ?
Yeah I guess, I didn't really mean to click on it
Is it right? lol
i need explanation why did you pick ? and bec u that was an educated guess let's start it ovr
Yeah I didnt evem mean to click on it, lets pretend i didnt click on that answer haha
elimination process to isolate one variable you need to cross out 2nd variable to do that you need opposite sign with same number :=)
so that's how multiply first equation by -2
|dw:1434568328568:dw| multiply both sides by -2 let me know what you get :=)
4m =4 n+b?
-2 times -2 is -4
b how did you get b ?? -2(n+6) multiply everything which is inside the parentheses by outside term
for example a(b+c) = a times b +a times c :=)
Gah, I dont know! :(
-2 times n = ? -2 times 6 = ?
-2 times 6 = -12
-2 times n = -2?
n can be written as 1n so multiply the coefficients -2 times 1n = -2n
now step is right or na ?
now step 2 is right or na ?
right
i mean wrong
Let me look at it for a sec lol
okay
Step 2 is wrong
how is it wrong ?
step 2 is right
yes |dw:1434568814335:dw| now combine like terms
Gah, algebra is NOT my best class
|dw:1434569003073:dw| COmbine like terms
just practice :=)
2m = 10n 2m = 16n
and so m equals 5 in the first equation and m equals 8 in the second?
|dw:1434569117690:dw| combine them -2m and 2m are like terms so -2m +2m = ?
0
they cancel eachother
yes right !
:D
|dw:1434569214780:dw| now combine these one
and why is it wrong ?
14n 16n
Never mind about the step 3 is wrong lol
it's okay tell me why do you think it's wrong ?
Step 4 is wrong, because it should be 10n and 16n!
they wrote −20 = 10n
combine like terms meaning add coefficient of same variable examples 2+6 are like terms both numbers are constant(without any variable ) 2x+3x are like terms bec variables are same
we are still on step 3 :=)
|dw:1434569457564:dw|