Subtract equation #2 from equation # 1.
5x = 35
You should be able to take it from here.
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions,state this.
3x+7y=77
-2x+7y=42
3 answers
I understand where I should what from where plz help me out. It would really be appreciaeted.
3x-(-2x) = 3x+2x = 5x
7y-7y = 0
77-42 = 35
Therefore 5x + 0 = 35 or 5x = 35
7y-7y = 0
77-42 = 35
Therefore 5x + 0 = 35 or 5x = 35
1 answer