What is 21a+18a+31b-3b ?

The solution to 21a+18a+31b-3b is 39a+28b

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simplify 21a+18a+31b-3b

simplify

21 a + 18 a + 31 b - 3 b

39 a + 28 b

Solution steps

21 a + 18 a + 31 b - 3 b

Add similar elements:

21 a + 18 a = 39 a

= 39 a + 31 b - 3 b

Add similar elements:

31 b - 3 b = 28 b

= 39 a + 28 b

(6 k^{5}) (- k^{4})

3 \cdot 43

3 \cdot 46

4 \cdot 1 0^{- 9}

(6^{4})^{5}