0,5(4a-3)-(2,5-6a)+12=0
2a-1,5 - 2,5+6a + 12 = 0
8a = -4 + 12
8a = 8
a = 1
Наверное так.
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0,5(4a-3)-(2,5-6a)+12=0
2a-1,5 - 2,5+6a + 12 = 0
8a = -4 + 12
8a = 8
a = 1
Наверное так.
8а+8=0
8а=8
а=1