2x + 4y = 14
3x + 12y = 51

Question

2x + 4y = 14
3x + 12y = 51

amistre64 · Answer

if you multiply the top by -3, we can eliminate the y values and just have the xs to focus on

mathslover · Answer

ok : 
$$\large{2x+4y=14}$$ 

Can u solve for x here ?

mathslover · Answer

Just take the first equation into the account ... and tell me tht wht r u getting for x  ?

mathslover · Answer

@dezzy please reply us

anonymous · Answer

multiply first equation with 3:
6x+12y=42...........(1)
3x+12y=51...........(2)

subtract 2nd equation from 1st one:
3x=-9
x=-3

put the value of x in any one of the equations and get the value of y
3(-3)+12y=51
12y=51+9
12y=60
y=5

mathslover · Answer

@dezzy we give live to live responses ... please tell us ..where r u having problem ..? http://openstudy.com/code-of-conduct

anonymous · Answer

Good Attempt @nitz

anonymous · Answer

thanks @lllasMcKay

anonymous · Answer

Its ILLAS MCKAY

anonymous · Answer

ok sorry.........

anonymous · Answer

thanks nitz

anonymous · Answer

you cant solve for x unless there is another equation

anonymous · Answer

Welcome spelling is wrong @mathslover

anonymous · Answer

See if there are two variables then we require two equations..

mathslover · Answer

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