Here’s my working out the green numbers are the answers
it will rotate 150/30= 5 degrees per minute the it will rotate 5(5)=25 degrees per five minutes
Answer: the answer is 7
Step-by-step explanation: add 9 to both sides, eliminating -9 so now you have 7x=49 divide both by 7 and you get x= 7 check it by inputing 7 for x, 7(7)-9=40
7(7)=49 next 49-9= 40
it checks out, so x= 7