Question

solve by elimination method 7x-15y=2, x+2y=3​

Answer 1

Answer:

7x-15y=2,x+2y=3

Step-by-step explanation:

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Answer 2

Answer:

7x-15y-2=0..eq.1

x+2y-3=0.eq.2

now eq.2is multiply by 7

then the eq.2 become 7x+14y-21=0 this is eq.3

now, subtract eq.3 from 1

7x-15y-2-7x-14y-21=0

now we have

-29y=-19

negtve sign cut

then y=19/29

now put 19/29 eq.1 to find x

7x-15(19/29)-2=0

now by solving x gives 49/29

thus x=49/29 y=19/20