Math, asked by aponwangsu469, 8 months ago

x+2y=20 equ. no.1 and 2x+y=30 equ. no.1 soln. by substituting method

Answers

Answered by sidrakhan0697

2

x,y=10

Step-by-step explanation:

2x+y=30\x+2y=20

by changing sign of second equation we get ans 10

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