4. If x + y = 12 and 2x - 3y =
14 then.
1) X = 0, y = 2
2) X = 10, y = 2
3) X = 2, y = 10
4) Other
Answers
Answered by
0
Answer:
x+y=12
or,x=y-12
putting x=y-12 in equation 2x-3y=14
2(y-12)-3y=14
2y-24-3y=14
-y=14+24
y=-38
x=y-12
x=-38-12
x=-50
therefore the correct option is 4
Answered by
0
Answer:
2) X = 10, y = 2
Step-by-step explanation:
x+y=12----(1)
x=12-y
2x-3y=14---(2)
putting value of x in (2)
2x-3y=14---from (2)
2(12-y)-3y=14
24-2y-3y=14
24-5y=14
-5y=14-24
-5y=-10
y=-10/-5
y=2
putting value of y in (1)
x+y=12----from (1)
x+2=12
x=12-2
x=10
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