1) 7m+2 - (4-3,5m) = ?

2) 5 (3-1,4B) + 2 (3B-11) = ?

3) 15axy-10ay+20xy=?

Question

Математика

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9 марта, 18:02

1) 7m+2 - (4-3,5m) = ?

2) 5 (3-1,4B) + 2 (3B-11) = ?

3) 15axy-10ay+20xy=?

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Матюша · Answer 1

1) 7m + 2 - (4 - 3,5m) = 7m + 2 - 4 + 3,5m = 10,5m - 2

2) 5 (3 - 1,4b) + 2 (3b - 11) = 15 - 7b + 6b - 22 = - b - 7

3) 15ayx - 10ay + 20xy = 5y (3ax - 2a + 4x)

1) 7m+2 - (4-3,5m) = ?2) 5 (3-1,4B) + 2 (3B-11) = ?3) 15axy-10ay+20xy=?

1) 7m+2 - (4-3,5m) = ?

2) 5 (3-1,4B) + 2 (3B-11) = ?

3) 15axy-10ay+20xy=?