3. Solve the following simultaneous equations :(2 marks each)(i) 5x +

1.	3. Solve the following simultaneous equations :(2 marks each)(i) 5x + 3y=9; * -6y=15.Solution :
Answer» 5x+3y=9; x-8y=10; 8(5x+3y=9)=40x+24y=72; 3(x-8y=10)=8x-24y=30; /32x=42; 48x=32; x=32/48=6/8=3/4; 5(3/4)+3y=9; 15+12y=36; 12y=21; y=21/12=7/4 5x+3y=9; x-8y=15; 8(5x+3y=9)=40x+24y=72; 3(x-8y=15)= 3x-24y=45 /27x=27= x=1; 5(1)+3y=9; 3y=9-5=4; y=4/3; 5(1)+3(4/3)=9; 5+4=9; 9=9 X= 3, y= -2 is the correct answer of the given question

3. Solve the following simultaneous equations :(2 marks each)(i) 5x + 3y=9; * -6y=15.Solution :

Answer»

5x+3y=9; x-8y=10; 8(5x+3y=9)=40x+24y=72; 3(x-8y=10)=8x-24y=30; /32x=42; 48x=32; x=32/48=6/8=3/4; 5(3/4)+3y=9; 15+12y=36; 12y=21; y=21/12=7/4

5x+3y=9; x-8y=15; 8(5x+3y=9)=40x+24y=72; 3(x-8y=15)= 3x-24y=45 /27x=27= x=1; 5(1)+3y=9; 3y=9-5=4; y=4/3; 5(1)+3(4/3)=9; 5+4=9; 9=9

X= 3, y= -2 is the correct answer of the given question