X ± 17= 18

What is the solution to this equation?
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What term best describes a line ans a point that lie in the same plane

Which approach to the theory-and-research cycle does the following sequence reflect: (1) specific observations suggest generalizations, (2) generalizations produce a tentative theory, (3) the theory is tested through the formation of hypotheses, and (4) hypotheses may provide suggestions for additional observations?

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9