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savar3
@savar3
July 2022
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РЕШИТЕ СИСТЕМУ УРАВНЕНИЙ СПОСОБОМ ПОДСТОНОВКИ 2а- 3в=5 а+3в=-3
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wejde
Verified answer
2a-3b=5, a+3b=-3
1) a=-3-3b
2(-3-3b)-3b=5
-6-6b-3b=5
-9b=11
b=-11/9
a=-3-3*(-11/9)=-3+11/3=-3+3 2/3=2/3
Ответ: a=2/3, b=-11/9
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savar3
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Answers & Comments
Verified answer
2a-3b=5, a+3b=-31) a=-3-3b
2(-3-3b)-3b=5
-6-6b-3b=5
-9b=11
b=-11/9
a=-3-3*(-11/9)=-3+11/3=-3+3 2/3=2/3
Ответ: a=2/3, b=-11/9