Question 573090: (1-x)(28)=(x)(98)
Answer by mathsmiles(68)   (Show Source):
You can put this solution on YOUR website! First, let's distribute what's in the parens to get rid of the parens ...
(1-x)(28) = (x)(98)
28 - 28x = 98x
Now add 28x to both sides to bring the x values to one side of the equation
28 = 126x
Now divide both sides by 126 to get x alone
28/126 = x
Reduce this by factoring out 2:
14/63
Now factor out a 7:
2/9
Checking:
(1-2/9)(28) = (2/9)(98)
(7/9)(28) = 196/9
196/9 = 196/9 Correct!
|
|
|
