Question 1043938
Solve the system using the substitution method. If the system has no solution or an infinite number of solutions, state this.

x+y=7
6x+6y=42
   solution
x+y=7----(1)
6x+6y=42--(2)
divide equ 2 by 6
x+y=7---(3)
equate equ 1 and 3
x+y=x+y
x-y+x-y=0
0=0
from the above,the system has no solution.

  TIMNEWMAN