Answer:
a = 3
Step-by-step explanation:
10(3 + a) = 60
30 + 10a = 60
10a = 60 - 30
10a = 30
a = 30 ÷ 10
well if you are trying to figure out what a is here is the answer
30+ 10a = 60
10a =30
10 x 3 = 30
so a is 3
