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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 ?
i mean wrong
Let me look at it for a sec lol
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 = ?
they cancel eachother
yes right !
|dw:1434569214780:dw| now combine these one
and why is it wrong ?
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 :=)