Are you good at math? (TEST)


#42

alright, heres one, Solve 2x +4X/21 -21= 3/7-9/24 +9X
solce for X


#43

2X+(4X / 21)-21 = (3/7 - 9/24)+9X
2X+(4X / 21)-21 = (72/168 - 63/168)+9X
2X+(4X / 21)-21 = 18.67+9X
-2X+2X+(4X / 21)-21 = 18.67+9X-2X
(4X / 21)-21+21 = 18.67+21+7X
(4X / 21) = 39.67+7X

This is as far as I can think, don’t know what else to do.


#44

Muiltply everything by 21 to get rid of the fraction,


#45

Alright, ill show you how this works, you use the distributive property in this aswell.
8x+4/6-24X-(x-45)/6 = 9x-x-(5-8x)/3+6
First step:muiltiply everything by 6 to get rid of the fractions, you want those gone immediately. After we muiltiplay everything it will look like this:
48x+4-144x-1(x-45)=45x-6x-2(5-8x)+36 now you Do the ditribhtive property
48x+4-144x-x-45=45x-6x-10-16x+36 now you collect loke terms on both dies of the equal sign
-97x-39=23x+26 then you subtract from both sides
+39. +39
-97x=23x+65
-23x. -23x
-120x=65 now you put them bith into fractions
120x/120=65/120
X=13/24 thats your answer.