2x+3y+4=0,x-5y=11 solve by substitution method of 9th std practice set 5.1 Q.3
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2x+3y= - 4........... Equation.. 1
X-5y=11.............equation.....2
2x+3y= -4
2x-10y=22
- __________
O+13y= - 26
Y=-26/13
Y= -2
Substitute y= -2 in equation 1
2x+3(-2)= - 4
2x-6= - 4
2x= - 4+6
2x=2
X= 1
X-5y=11.............equation.....2
2x+3y= -4
2x-10y=22
- __________
O+13y= - 26
Y=-26/13
Y= -2
Substitute y= -2 in equation 1
2x+3(-2)= - 4
2x-6= - 4
2x= - 4+6
2x=2
X= 1
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