Question

-5b + 4a = 6
3a + b = 7
find value of a and b​

Answer 1

Answer:

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Answer 2

Answer:

-5b+4a=6........(1)

3a+b=7..........(2)

by multiplying (2) with 5 ,we will get,

15a+5b=35

now,

4a-5b=6

15a+5b=35

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19a =41

a=41/19

by adding the value of a in (1),

4*41/19-5b=6

164/19-5b=6

5b=6*19/164

b=

$\frac{6 \times 19}{164 \times 5}$

=114/820

=24/205