Answer:
These equations are equivalent because after you solve the equation the answer are the same. For example 2+2 and 3+1 are equivalent. They both equal four. In these problems are x=3 and x=3.5 they are the same beause of the answer on problem 2 6-x. That makes them both have the same answer
Step-by-step explanation:
7x-9=12
+9=+9
7x=21
/7=/7
x=3
5682 divided by 4 is 1420 remainder 2 Hope that helped Have a good day! :-)
Answer:
you're on the 6th floor
Step-by-step explanation:
if you started on the 2nd floor and went down by 3 you subtract 3 from 2 which gives you -1, and then you go up 7 floors so you add -1+7 which gives you 6.
