Question

solve: x-2y = 3 and 3x + 2y = -1 by substitution method​

Answer 1

Step-by-step explanation:

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Answer 2

Step-by-step explanation:

Just add equation 1 and 2,

x-2y= 3 -------------1

3x+2y= -1 ---------------2

4x =2, x=1/2

Putting the value of x in equation 1

y=( 3-x)/-2

y=(3-1/2)/-2

= (5/2)/-2= 5/(2)*(-2)= -5/4