etaylor3421
19.05.2021 •
Mathematics
2a + 3b = 5
b=a-5 I need helppp
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Ответ:
4
Step-by-step explanation:
2a+3b=5
2a+3(a-5)=5
2a+3a-15=5
5a=5+15
5a=20
a=4
Ответ:
b = a - 5
2a + 3b = 5
2a + 3( a - 5 ) = 5
2a + 3a - 15 = 5
5a - 15 = 5
5a - 15 + 15 = 5 + 15
5a = 20
5a ÷ 5 = 20 ÷ 5
a = 4
b = a - 5 ===》 b = 4 - 5 ===》 b = - 1
Ответ:
I can make one up for you
Square , Circle , Square , Prism , Sphere , Cone , Semi-Circle , Square , Circle,
What are the next 5 shapes ?
Step-by-step explanation: