solve this question by crossmultiplication method.
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5u - 2v = -1
multiplying by three
15u - 6v = -3 ..............................(1)
15u + 7v = 10 ...............................(2)
from (1) and (2)
v = 1 and u = 1/5
u = 1 / x + y v = 1/ x - y
1/5 = 1/x+y 1 = 1 / x - y
x+y = 5 ............(3) x - y = 1 ............(4)
From (3) and (4)
x = 3 and y = 2
multiplying by three
15u - 6v = -3 ..............................(1)
15u + 7v = 10 ...............................(2)
from (1) and (2)
v = 1 and u = 1/5
u = 1 / x + y v = 1/ x - y
1/5 = 1/x+y 1 = 1 / x - y
x+y = 5 ............(3) x - y = 1 ............(4)
From (3) and (4)
x = 3 and y = 2
purvisri02:
t]hanks
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