Question

substitute 2x+y=-6 3x+y=-10

Answer 1

// Solve equation for the variable  y  
 y = -3x + 10Plug this in for variable  y  in equation [1]2x - (-3x+10) = -6   5x = 4Solve equationfor the variable  x  x = 4   = 4/5 x = 4/5   y = -3x+10bUse the  x  value to solve for  y  

 y = -3(4/5)+10 = 38/5  Solution : {x,y} = {4/5,38/5}