Simple....
you have:
3x-9=7x+12
To even solve this....isolate the variable your are trying to solve for....
3x-9=7x+12
-3x -3x
-9=4x+12
-9=4x+12
-12 -12
-21=4x
Simplify.....


Thus, your answer.
If you multiply something to the numerator and denominator then you can get anther equivalent fraction
Answer:
a
Step-by-step explanation:
hope this helps yout just have to put the negative letters with the positive!!!
Answer:
3
Step-by-step explanation:
12/4 =3
rise 12 run 4
Answer:
q=0 or q=-1/6
Step-by-step explanation: