solve for x and y
x+1/2+ y-1/3=9
x-1/3+y+1/2=8
plzz frnds tell me the answer fast........
Answers
Answer:
1+2=3
1/2= 0.5
0.5-1= -0.5
0.5/3= 0.16
0.16-1=0.84 answer
Step-by-step explanation:
3-1 = 2
1/3=0.33
0.33+1= 1.33
1.33/2=0.665
0.665+1= 1.665 answer
Answer:
Step-by-step explanation
ok dear.
this is a very easy question
this will obviously lead to a simultaneous equation
let ....x+1/2+y-1/3=9.........equ. 1
x-1/3+y+1/2=8........equ. 2
lets focus on the first equ. (equ. stands for equation). The 1st equation will lead to this
x+y+1/2-1/3=9
x+y+1/6=9
(now to clear that fraction, we are gonna multiply both side by 6) and this will lead to
6x+6y+1=54
6x+6y=53 .......equ.3
now lets focus on the second equ.
x-y-1/3+1/2=8
x-y+1/6=8
[multiply through by 6 to clear the fraction]
6x-6y+1=48
6x-6y=47...............equ.4
now we are gonna use equ. 3 and 4 to get our values for x and y. so lets bring them together
6x+6y=53
6x-6y=47
(you can choose to solve for x or y first but i'd love to go with x first)
the best mthd. to use for this is substitution mthd.
so let sub. equ 1 into equ 2
for equ 1
x= 53-6y/6 (sub this into equ2.)
6(53-6y/6)-6y=47 {6 cancles out)
53-6y-6y=47
53-12y=47
-12y=47-53
-12y=-6
therefore y=-6/-12
the answer will be
y=1/2
Now, substitute this answer for y into any of the equations to get your x.
I will use equation 1.
(substituting y=1/2 into equ. 1)
6x+6(1/2)=53
6x+3=53
6x=50
x=50/6
therfore x= 25/3
therefore, x=25/3 and y=1/2
those are your answers
You can find out if these answers are correct if you substitute x and y into the question given to you.