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Sagot :
Answer:
Step-by-step explanation:
10b + -2
or
10b - 2
8b + 2b = 10b
7 - 9 (or 9 - 7, which equals 2) = -2
you can add -2 which is
10b + -2
or subtract
10b - 2
Answer:
10b-2
Step-by-step explanation:
8b+2b is 10b. Then 7+(-9) is -2. Combine the answer to get 10b-2
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