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Is the equation (true), (false), or (open)? Explain. 9p + 8 = 10p + 7
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p=1
9p + 8 = 10p + 7 subtract 9p from both sides 9p - 9p + 8 = 10p - 9p + 7 8 = p + 7 subtract 7 from both sides 8 - 7 = p + 7 -7 1 = p it is true because on substituting p= 1 we find LHS = RHS
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