Hat is the most efficient first step to isolate the variable term on one side of this equation? -9x = -4x + 5
Subtract 5 from both sides.
Add 5 to both sides.
Subtract 9x from both sides.
Add 4x to both sides.

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step-by-step explanation:

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here is the

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fist on the left goes with the third on the right. second on the left goes with the fourth on the right. third on the left goes with the second on the right. the fourth on the left goes with first on the right