Answer:
x can be 10 or -10
Step-by-step explanation:
in simpler form that equation is x-6=4 so you have to find what minus 6 will get you 4. add 6 to 4 and you get 10 so 10-6=4 and x=10
this is just what i remember from school idk if this is correct but i think so
2x-4+4=6x+4-4x
2x=2x+4
c there is no solution
9. B
y=-5 and x=-25
y=(1/5)x
-5=(1/5)*-25
-5=-5
10. A
y=42 and x=14
y=3x
42=36*14
42=42