Question

3a + b = 225
b = a - 15​

Answer 1

a= 60
b= 45
(: i took the quiz

Answer 2

3a + b = 225
b = a - 15

3a + b = 225
a - b = 15

4a = 240

a = 60

3(60) + b = 225
180 + b = 225
b = 45

So, a = 60 and b = 45