Answer:
the answer should be 3 100% sure
Explanation:
Simplify 4b-3b+74b−3b+7 to b+7b+7.
b+7=10b+7=10
2 Subtract 77 from both sides.
b=10-7b=10−7
3 Simplify 10-710−7 to 33.
b=3b=3
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