Respuesta :
Answer:
x=-9
Step-by-step explanation:
-x + 2x (to switch the 2x to the other side) = x
so 15+x=6
Now you have to switch the 15 to the other side so you subtract it.
6-15=-9
and that's why x=-9 is the answer
Answer:
-9
Step-by-step explanation:
15-x=-2x+6
First add -2x to the other side:
15-x+2x=6
15-x=6
Subtract 15 on the other side:
15-15-x=6-15
x=-9