Option 1
Express one variable through the other:
2x+y=4;
x+6y=9;
3a+b=12;
c+8b=15.
Solve the system of equations by substitution:
{“(5y-x=6@3x-4y=4)┤
Solve the system of equations by substitution:
{(4x-3y=12@3x+4y=34)┤
Solve the system of equations by substitution:
{(6x+3=8x-3(2y-4)@2(2x-3y)-4x=2y-8)┤
* Solve the system of equations by substitution:
{((x+2y)/5+(3x-y)/3=5@2x-3y=-1)┤
Option 2
Express one variable through the other:
6x-y=18;
-a-5b=20;
18m-n=3;
-p-9q=4.
Solve the system of equations by substitution:
{(4y-x=11@6y-2x=13)┤
Solve the system of equations by substitution:
{(2x-3y=12@3x+2y=5)┤
Solve the system of equations by substitution:
{(4y+20=2(3x-4y)-4@16-(5x+2y)=3x-2y)┤
* Solve the system of equations by substitution:
{(7x-10y=5@(4x+1)/3-(5x-3y)/4=3)┤
