1. Упростите выражение:
-2(8a+7b)+4(a-2b).
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-2(8a+7b)+4(a-2b)=-16а-14b+4a-8b=-12a-22b
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-2(8a+7b)+4(a-2b)=-16а-14b+4a-8b=-12a-22b