3x+y = 6.5 2x = 4y - 5

Your question?

@CGGURUMANJUNATH

first step is: 3x - y = 6.5 4y - 2x = -5

is that right?

good

what is next step ?

3x+y = 6.5 2x = 4y - 5 then, 3x+y=6.5 2x-4y=-5 then, (3x+y=6.5)2 (2x-4y=-5)3 then, 6x+2y=13 6x-12y=-15 then subtract, 14y=28 the, divide both sides by 14, 14y/14=28/14, so then the 14s would cross out and 28/14 is 2. so. y=2

then substitute y into an original expression in your question.

3x - y = 6.5 - 2x+4y = -5 is ur next step right ?

i dont know step 2 :/

3x - y = 6.5 - 2x+4y = -5 is ur next step right ?====step 2

4(2) - 2x =-5 then, 8 - 2x =-5 then, -2x= -5 -8, if hope u know what i did there. -2x=-13, then dive both side by -2 x=13/2

3x - y = 6.5 - 2x+4y = -5 this is step 2?

yes

what next ?

(3x-y=6.5) - (4y-2x=-5)

3x - y = 6.5====multiply this equation by the coeffient of x in the second equation ie -2 - 2x+4y = -5====multiply this equation by the coeffient of x in the first equation ie 3

no this step will come in the end...(3x-y=6.5) - (4y-2x=-5)

3x - y = 6.5====multiply this equation by the coeffient of x in the second equation ie -2 - 2x+4y = -5====multiply this equation by the coeffient of x in the first equation ie 3

omg this is so hard i dont understand anything >,<

-6x+2y=-13 -6x+12y=-15

do one thing take 5 minutes and write down steps by steps the problem which i explained before ,then u can call me. ok////

i wrote everything down already :/

now whats after this? -6x+2y=-13 -6x+12y=-15

-6x+2y=-13===call this equation 3 -6x+12y=-15===call this equation 4. do equation(3)-equation(4) now .

tell me the answer @charlieberzak

it is lengthy problem but it is easy.

(-6x+2y=-13)-(-6x+12y=-15)

(-6x+2y=-13)-(-6x+12y=-15) -6x--6x+2y+12y=-13-15

-6x+6x+2y+12y = -13-15

-6x+6x+2y+12y=-13+15

be careful with the + and - signs.

yes

what next ?

14xy = 28

?

14y=2 right ?

i dont know :/

-6x+6x+2y+12y=-13+15 2y+12y=2 right ?

ummm not 14y?

2y+12y=14y

why ?

it is 14y.

because u said this -6x+6x+2y+12y=-13+15 2y+12y=2 right ?

-13+15=2

ohhh isee what u mean, never mind :)

-13+15 is not 28

be careful with the + and - signs.

14y=2

yes, iknow :)

now find y.

14y/-14 = 2/14

is that how i should do it?

14y/14=2/14

oh

y=7

why negative sign ? 14y/-14 = 2/14

no

y=2/14=1/7

can u tell me x value now correctly ?

y=1/7 is it clear ?

7=1/7

7=1/7 how ?

n0 7=1/7 is wrong.

omfg i dont know :/ i suck at this ****

14y/14=2/14

do u agree with above statement ?

yes

14y/14 = y

correct?

yes

2/14

i dont know

7

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