Question

Please solve this problem with Elemination method (Simultaneous Liner Equation).......ICSE......​

Answer 1

Answer:

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Answer 2

Answer:

let tgw 1/x be a

3a+4y=7. ×5

5a+6y=13. ×3

by elimination

15a+20y=35

15a+18y=39

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_________

0. +2y= -4

y= -2

a=?

put y = -2 in first equation

3a + 4(-2)=7

3a -8 = 7

3a = 15

a = 5

a = 1/x

x=1/5 , y = -2