Asked by Lacy

5x+6/3x-9=7/3
Answered by Reiny
ambiguous.

did you mean the way you typed it, or
(5x+6)/(3x-9)=7/3
or
5x+6/(3x) -9=7/3
or ..
?
Answered by Lacy
The first example
Answered by Lacy
(5x+6)/(3x-9)=7/3
Do not understand
Help
Answered by Steve
clear fractions, or cross-multiply

3(5x+6) = 7(3x-9)
15x+18 = 21x-63
...
Answered by Reiny
the LCD is 3(3x-9), so let's multiply both sides by that

3(5x+6) = 7(3x-9)
this is often called "cross-multiplying"

15x + 18 = 21x - 63
-6x = - 81
x = -81/-6 = 13.5
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