Henri solved the system of equations below. What mistake did he make in his work?
3x + y = 6
x - 2y = 2

y = 6 - 3x
x - 2(6 - 3x) = 2
x - 12 + 6x = 2
7x - 12 = 2
+ 12 +12

x = 2

3(2) + y = 6
6 + y = 6
-6 -6
y = 0

Question

Henri solved the system of equations below. What mistake did he make in his work?
3x + y = 6
x - 2y = 2

y = 6 - 3x
x - 2(6 - 3x) = 2
x - 12 + 6x = 2
7x - 12 = 2
+ 12 +12

x = 2

3(2) + y = 6
6 + y = 6
-6 -6
y = 0

anonymous · Answer

I dont think he  made a mistake but i just wanna be sure can anyone help me plzzz

anonymous · Answer

Besides not explicitly showing that 7x=14 in solving for x, I don't see anything wrong here.
The solution works.

anonymous · Answer

thanks again lol