Perform indicated multiplication on left side..
4-x+2=2x-12+3x combine like terms on both sides
-x+6=5x-12 subtract 5x from both sides
-6x+6=-12 subtract 6 from both sides
-6x=-18 divide both sides by -6
x=3
Answer:
You would at least a 90 to average out your score to an 84
but I dont know how to get the inequality sorry
I hoped this helped a little
Step-by-step explanation:
Fisrt you will need to find the average of the numbers by adding them up and dividing by 3 ( because there are 3 numbers )
which would give you 81
then you have to get at least above an 81 to make it go higher but you may have to do a little more than that there for 90 is what you need
Let his original money is x
So,
+
+ 2.25 = x
or,
or, 5x + 13.5 = 6x
or, x = 13.5
So, he had $13.5 originaly.
Thanks!
