(iv) 2x + бу = 30; 6x - 2y = 50
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2x + 6y = 30
6x – 2y = 50
3(2x + 6y = 30)
6x – 2y = 50
= 6x + 18y = 90 ... 1
6x – 2y = 50
by elimination
20y = 40
y = 2
x = (50 + 2y)/6
= 54/6
= 9
x=9, y= 2
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Answer:
The value of x=9 and y=2
Step-by-step explanation:
Taking a look at the question, we can assume that we have to find out the values of x and y.
The given equations are:
2x + бу = 30 (1)
6x - 2y = 50 (2)
Multiply the equation (2) by 3
I will become 18x - 6y = 150 (3)
Now add (1) and (3)
2x + бу = 30
+ 18x - 6y = 150
_____________
20x = 180
x=9
Putting value of x in (1)
2(9) +6y =30
18 + 6y=30
6y=12
y=2
The value of x=9 and y=2
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