3a + b = 225
b = a - 15
A.) 3a + b = a -15
B.) 3a + a = 225
C.) 3a + a - 15...
![Mathematics](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 01:00, ceciliaaa
3a + b = 225
b = a - 15
A.) 3a + b = a -15
B.) 3a + a = 225
C.) 3a + a - 15 = 225
D.) b = 3a + b
![answer](/tpl/images/cats/otvet.png)
Answers: 2
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