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Sergio039 [100]
3 years ago
9

Just A and B really stuck pls help really appreciate it thx

Mathematics
1 answer:
sineoko [7]3 years ago
4 0

Answer:

a) 5r +3 + 2(r+9) =  7r + 21

b) 2 (4w - 5) - 2 (w - 7) =  6w + 4

Step-by-step explanation:

a) 5r +3 + 2(r+9) = 5r +3 + 2r +18 = 7r + 21

b) 2 (4w - 5) - 2 (w - 7) = 8w -10 -2w +14 = 6w + 4

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