Question

Q18 solve the following simultaneous equations by graphical method x+3y=7;2x+y=-1
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Answer 1

Answer:

y=7-x

3

Putting value of y in eq. 2

2x+7-x=-1

3

2x+7-x=-3

X=-3-7

X=-10

Putting vaue of x in eq. 1

-10+3y=7

3y=7+10

3y=17

Y=17

3

Y=0.165

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