Mathematics, 11.12.2020 01:00, veve1787

When Sylvie verified the solution on a graph, the lines intersected at one point. What was her error? She forgot to put both equations in slope-intercept form.
She made an arithmetic mistake in the last step.
She found the incorrect value of x.
She did not substitute the value of x into one of the original equations to find y.

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When Sylvie verified the solution on a graph, the lines intersected at one point. What was her error...