Answer:
Step-by-step explanation:
5x-4=20
5x=24: x=24/5
y=3x-12
y=3(24/5)-12
y = (72-60)/5
y=12/5
Answer:
I believe the first one is rotation And the second is ABC= DEF.
Step-by-step explanation:
My geometry is really rusty so I apologize if they’re wrong
Step-by-step explanation:
Check the above photos....
In order to do this you have to substitute b with 9 and get 3a+9=54, now subtract 9 from both sides to leave a by itself and get 3a=45, now divide 3 in both sides to leave a by itself and get a=15
Hope this helps