Ответ:
2.
1) - 2,8z * (-5t) = 14tz
2) - 12a- 25b+18a + 14b = 6a - 11b
3) - 7 (m-4) + 5(m+2) = - 7m + 28 + 5m + 10 = - 2m + 38
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Answers & Comments
Ответ:
2.
1) - 2,8z * (-5t) = 14tz
2) - 12a- 25b+18a + 14b = 6a - 11b
3) - 7 (m-4) + 5(m+2) = - 7m + 28 + 5m + 10 = - 2m + 38