What is the most efficient first step to isolate the variable term on one side of this equation?
2 answers:
Answer: D. add 4x to both sides Explanation: -9x = -4x + 5 + 4x + 4x -5x = 5 -4x and -4x are opposite terms, so they cancel each other out. Once you add 4x to both sides, the variable term (-5x) is isolated on one side of the equation.
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