If b - 3 = 7, then b is equal to

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This equation means "some number, decreased by 3, is equal to 7." b-3 = 7 To arrive at a true statement for />, we want to eliminate - 3 on the left side of the equation. We do this by adding 3 to both sides of the equation, undoing the subtraction on the left side. When we add 3 to both sides, we are keeping the statement an equation. (B-3) + 3 = 7 + 3 By simplifying both sides, we isolate b and thus find the solution. B=10

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