Mathematics, 08.10.2019 21:30 mcmmonforte

To verify that 1/5(5x-20)-1/2(4x-8) is equivalent to -x. which procedure can i follow to determine if the two expressions are equivalent? add the two expressions, put an equal sign between the two expressions and solve for x, substitute 5 into the first expression, substitute 4 into the second expression, and evaluate the, or substitute 5 into each expression and evaluate them?

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To verify that 1/5(5x-20)-1/2(4x-8) is equivalent to -x. which procedure can i follow to determine i...