20/q = 7/9
20×9 = 7q
7q = 180
q = 180/7
You have to isolate x. First you start off by adding the like terms which is -3x and -x. By adding them you get -4x.
8 - 4x = 12
Then you subtract 8 on both sides since it is positive to isolate x.
-4x = 4
Then you divide -4 by both sides and get x=4/-4
4/-4 is simplified to -1 so the answer is x= -1
Answer:
40
Step-by-step explanation:
1/2* 8 (4 + 6) equation
4 (10) simplify
40
