Answer:
B
Step-by-step explanation:
-18 - 3x =12
-3x =12 +18(step two 30)
-3x=30
x=-30 :3
x=-10
Answer right B) it should be 30 in step two
the 6 should be 30 in step two
1/3
D. Parallel lines
Lines which intersect have their point of intersection as the solution to the system of equations. If there is no solution then two lines do not intersect. The two lines must be parallel.
Pythagorean theorem
