What is 9(7k+8)+3(k-10) ?

The solution to 9(7k+8)+3(k-10) is 66k+42

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simplify 9(7k+8)+3(k-10)

simplify

9 (7 k + 8) + 3 (k - 10)

66 k + 42

Solution steps

9 (7 k + 8) + 3 (k - 10)

Expand

9 (7 k + 8) : 63 k + 72

= 63 k + 72 + 3 (k - 10)

Expand

3 (k - 10) : 3 k - 30

= 63 k + 72 + 3 k - 30

Group like terms

= 63 k + 3 k + 72 - 30

Add similar elements:

63 k + 3 k = 66 k

= 66 k + 72 - 30

Subtract the numbers:

72 - 30 = 42

= 66 k + 42

3 - 23

(- 2.4) + (5.6) + (- 3) + (9)

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