WEBVTT

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Here is the problem: negative 7x minus 19 equals negative 7.

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A linear equation in x: isolate x using inverse operations.

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Start with the equation.

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Add 19 to both sides.

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Divide both sides by negative 7.

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So the answer is x equals negative 12 over 7 approximately negative 1.7142857.

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Doing the same operation to both sides keeps the equation balanced. Undoing addition, then multiplication, leaves x alone.

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x equals negative 1.7142857: left side equals negative 7, right side equals negative 7, which checks out.