Simplify both sides
2.3=y+7.9
flip the equation.
y+7.9=2.3
Subtract 7.9 from both sides.
y+7.9-7.9=2.3-7.9
y=-5.6
hope this helps!
Answer:
384
Step-by-step explanation:

Cross multiply and you get 384.
Answer:
c
Step-by-step explanation:

Answer:
-40
Step-by-step explanation:
you multiply both sides by 10 to get the variable by its self
n = -40
hope this helps