Question

solve it by substition method of Linear equations ​

Answer 1

Answer:

1.5x+0.1y=6.2___1

3x-0.4y=11.2___2

Using equation1

x=6.2-0.1y÷1.5

Put value of x in equation 2

3(6.2-0.1y÷1.5)-0.4y=11.2

6.2-0.1y÷0.5-0.4y=11.2

6.2-0.1y-2.0y=11.2×0.5

6.2-2.1y=5.6

-2.1y=5.6+6.2

-2.1y=11.8

-y=11.8÷2.1

y=-5.619

Step-by-step exnation:

Answer 2

Answer:

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