solve the eqution 3x-4y=16 for x
A. x=3(16+4y)
B. X= 4y/3 +16/3
C. x=4y+16
D. x= 16/3-4y/3

Question

solve the eqution 3x-4y=16 for x
A. x=3(16+4y)
B. X= 4y/3 +16/3
C. x=4y+16
D. x= 16/3-4y/3

anonymous · Answer

@hartnn  can you help i think its D but im not sure

hartnn · Answer

3x-4y = 16

add 4y on both sides,
what do u get?

hartnn · Answer

any problems?

anonymous · Answer

im trying to do it im just not so good with matt
so i would put it like 
3x-4y=16
    +4y +4y 
???

anonymous · Answer

then solve ?

hartnn · Answer

yes go ahead

3x = 4y + 16

now divide both sides by 3

anonymous · Answer

so then it would be 
3x = 4y + 16 
/            /
3x         3x
?

anonymous · Answer

do i plus the 4y and 16 then divide by 3 ?

anonymous · Answer

sorry im really bad at math so sorry if i sound stuppid

hartnn · Answer

keep 4y + 16 as it is.

they are not like terms, they cannot be combined

and no problem, you don't sound stupid, valid questions

anonymous · Answer

okay so then would i do 
3x divide by 3 and 16 divided by 3 then

hartnn · Answer

you mean 3x/3 , 4y /3 and 16/ 3 , right ?

anonymous · Answer

ya

hartnn · Answer

correct.

and 3x/3 = x

so we have 

x = 4y/3 + 16/3

makes sense?

anonymous · Answer

yes

hartnn · Answer

any doubts?

anonymous · Answer

thank you for explaining i mean at first i was very confused but since you helped me through the steps it was more clear to me

hartnn · Answer

i am glad i could help!
welcome ^_^