To solve 49^3x=343^2x+1, write each side equation in terms of base

Create equivalent expressions in the equation that all have equal bases.72(3x)=73(2x+1)72(3x)=73(2x+1)Since the bases are the same, then two expressions are only equal if the exponents are also equal.2(3x)=3(2x+1)

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given that    bisects ∠dbc, which statement must be true? the answer is:   m∠abd = m∠abc