Solve the equation 3x-y=3 and x+2y=20
Answers
Answered by
0
Step-by-step explanation:
3x-y=3········(i)
x+2y=20
3x+6y=60·····(ii)
(i)-(ii)
-y-6y=3-60
-7y=-57
y=57/7
x=20-2x57/7
x=20-114/7=26/7
PLEASE MARK BRAINLIEST.
Answered by
0
Answer:
3x-y=3. (i)
2x + 2 y=20. (2)
(i) x2
6x-2y=6
2x+2y=20
8x=26,X=26/8= 13/4
Put in (i)
3x-y=3
3x13/4-y=3
multiply by 4
3x13-4y=12
39-4y=12
27=4 y
y = 27/4
x=13/4 and y = 27/4
Similar questions