add the two expressions. 3.8b−7 and −2.9b+9 Enter your answer, in simplified form, in the box.
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solution.
(3.8b -7)+ (-2.9b+9)
= 0.9b+2
____
☺✌✌
(3.8b -7)+ (-2.9b+9)
= 0.9b+2
____
☺✌✌
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