the variable a would be 4
-7+(9)=2
you can do the opposite of what is given (9-7)
Answer:
490
Step-by-step explanation:
19.6
25
980
3920
4900
then add the decimal
490.0
Answer:
y = 4
Step-by-step explanation:
5/2y = 10
5/2y x 2/5 = 10 x 2/5
Multiply each side by the reciprocal
y = 4