SOLUTION: solve for the variable in each equation below. show work. provide check for answer. if solution is undefined, state that in answer. thxs b/2 - b/5 = 6 .2x + .05x = 2 1-.1y >

Algebra ->  Polynomials-and-rational-expressions -> SOLUTION: solve for the variable in each equation below. show work. provide check for answer. if solution is undefined, state that in answer. thxs b/2 - b/5 = 6 .2x + .05x = 2 1-.1y >      Log On


   

Question 389717: solve for the variable in each equation below. show work. provide check for answer. if solution is undefined, state that in answer. thxs
b/2 - b/5 = 6
.2x + .05x = 2
1-.1y > .2
7s-2/3 - 3s-16/6 = 2
8/x-2 = 4
Found 2 solutions by rfer, ewatrrr:
Answer by rfer(16322) About Me  (Show Source):
You can put this solution on YOUR website!
A)
5b/10-2b/10=6
3b/10=6
3b=60
b=20
B)
.25x=2
x=8
C)
-0.1y > 0.2-1
y < -0.8/-0.1
y < 8
you try the others

Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!


Hi,         

b/2 - b/5 = 6    multiplying each term by 10

5b-2b = 60 

 b = 20  

CHECKING Our Answer*** 

20/2 - 20/5 = 6



.2x + .05x = 2   multiplying each term by 100



20x + 5x = 200  

x = 8  

CHECKING Our Answer***

.2*8 + .05*8 = 1.6 + .4 = 2



1-.1y > .2    multiplying each term by 10



10 - y > 2 

OR 8 > y

CHECKING Our Answer***

1-.7 >.2



(7s-2)/3 - (3s-16)/6 = 2  multiplying each term by 6

2(7s-2) - (3s-16) = 12

 14s - 4 - 3s + 16 = 12

   11s = 0

     s = 0

CHECKING Our Answer***

-2/3 + 16/6 = -2/3 + 8/3 = 6/3 = 2



8/x-2 = 4/1   Cross multiplying

4(x-2) = 8

 x-2 = 2

   x = 2

CHECKING Our Answer***

8/(6-4) = 8/2 = 4/1