Question

2x + y =19 2x -3y=-3 हे केमरच्या पद्धतीने एकसामायिक समीकरण सोडवा ?
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Answer 1

2x+y=19- equation 1

2x-3y=-3-equation 2

subtract equation 2 from 1

2x+y=19 -(2x-3y=-3)

2x+y=19 -2x+3y=+3

2x-2x+y+3y=19+3

0+4y=22

y=22/4

y=8

substituting the value of y in equation 2 to find x

2x-3(8)=-3

2x-24=-3

2x=-3+24

2x=21

x=21/2

x=10.5