Question

quick please combining like terms

1) -8(9k - 4)= 9k + 32

2) 8m + 6m=?

3) -6(2 + 3r)

4) 9 + 3n - 2

5) -5(-7 + 4p)

6) 2c - 5 + 8c

7) 8 + 6z + 3

8) 9p + p

9) 2(-6b + 5)

10) 8 - 3b + 7

Answer 1

1) -8(9k - 4)= 9k + 32
-72k + 32 = 9k + 32
-72k = 9k
-8k = k
0 = k + 8k
0 = 9k
0 = k
k = 0
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2) 8m + 6m
14m
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3) -6(2 + 3r)
-12 - 18r
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4) 9 + 3n - 2
3n + 7
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5) -5(-7 + 4p)
-5(4p - 7)
-20p + 35
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6) 2c - 5 + 8c
(2c + 8c) - 5
10c - 5
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7) 8 + 6z + 3
6z + 11
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8) 9p + p
10p
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9) 2(-6b + 5)
2 × -6n + 2 × 5
-2 × 6b + 2 × 5
-12b + 2 × 5
-12b + 10
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10) 8 - 3b + 7
-3b + 15