Answer:
Step-by-step explanation:
it no solution
No solution is parallel to each other.
solution crosses each other.
infinite is only one line.
2x(y-z)+x(y+z)
2xy-2xz+xy+xz
like terms.(2xy+xy=3xy)(-2xz+xz=-xz)
=3xy-xz
You have to distribute the 3.
3*4x , 3*-5
12x - 15
Hope this helps :)
Its 10
10 x 3 = 30
30/2 = 15