i)
m+3 m+5
------ = ---------
m+2 m-5
CROSS MULTIPLICATION
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m+5=m-0 shahad eda ho sakda
Answered by
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Answer:
3m+n=15 ----- (1)
m+2n=10 ----- (2)
First use formula for cross multiplication method:
b
1
c
2
−b
2
c
1
m
=
c
1
a
2
−a
1
c
2
n
=
a
2
b
2
−a
2
b
1
−1
So, from equation (1) and (2) we can write the value of a, b and c.
1×10−2×15
m
=
15×1−3×10
n
=
3×2−1×1
−1
10−30
m
=
15−30
n
=
6−1
−1
−20
m
=
−15
n
=
5
−1
−20
m
=
5
−1
m=
5
20
=4
−15
n
=
5
−1
n=
5
15
=3
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