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Mathematics
Macy Klein
11 November, 23:54
5a + 3b + c = 40
a-3b+2c = - 10
14a-2b+3c = 50
+4
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Xavier Nguyen
12 November, 00:45
0
a = 40-3b-c/5
a=-10+3b-2c
a=50+2b-3c/14
Step-by-step explanation:
5a+3b+c - (3b+c) = 40 - (3b+c)
5a=40-3b-c
5a/5=40/5-3b/5-c/5
a = 40-3b-c/5
a-3b+2c - (3b+2c) = -10 - (-3b+2c)
a=-10+3b-2c
14a-2b+3c - (-2b+3c) = 50 - (-2b+3c)
14a=50+2b-3c
14a/14=50/14+2b/14-3c/14
a=50+2b-3c/14
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