A jar contains four blue marbles and two red marbles. Suppose you choose a
marble at random, and do not replace it. Then you choose a second marble.
Find the probability of each event.
37. You select a blue marble and then a red marble.
38. You select a red marble and then a blue marble.
39. One of the marbles you select is blue and the other is red.
40. Both of the marbles you select are red.

-2x + 7 = 7

subtract 7 from both sides.

-2x = 0

divide both sides by -2.

x = 0

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

yes

step-by-step explanation:

so of course you want to start by plugging the 5 in which goes to 7(5)+3(5)=50 because 7*5=35 and 3*5=15 and then add them together, then plug in the 5 to the other equation as well 9(5)+5=50 because 9*5= 45 and then add 5 and so yes they are equivalent.