Question

3x/10+3y/25=5
3x/10-3y/25=2
By substituting method​

Answer 1

3x/10+3y/25=5····1

3x/10-3y/25=2····2

+

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2(3x/10)=7

or,3x/10=7/2

or,3x=(7/2)×10

or,x=11.667

when x number belongs to 1 no,

or,(3×11.667)/10+3y/25=5

or,3.556+3y/25=5

or,3y/25=1.5

or,3y=37.5

or,y=12.5

so the ans is for x it is 11.667 and for y it is 12.5