Ответы и объяснения

2013-05-12T12:33:13+00:00
2013-05-12T12:35:08+00:00

10-2(х-1)=22

10 - 2x + 2 = 22

-2x = 22-10 -2

-2x = 10

x = -5

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10-2 (-5-1) = 22

10-2*(-6) = 22

10 -(-12)  = 22