Answer:
-5, 3
Step-by-step explanation:
3) 10+3n=20+5n Set up the problem
-3n -3n Subtract 3n from both sides to get n on one side of the equation.
10 =20-2n
-20 -20 Subtract 20 from both sides to isolate n
-10 =2n
/2 /2 Divide both sides by 2 to isolate n
-5 = n
4) 18=2(b+6) Write down problem
18=2b+12 Distribute
-12 -12 Subtract 12 from both sides to isolate b
6=2b
/2/2 Divide both sides by 2 to isolate b
3=b
