-2,8×(3x+7)=5,6 jjjkjjjjjjjjjjjjjjjjjjjjjjjjjjjj

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-2,8×(3x+7)=5,6 jjjkjjjjjjjjjjjjjjjjjjjjjjjjjjjj

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-2,8(3х+7)=5,6
-8,4х-19,6=5.6
-8,4х=25,2
х=-3.

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