2 Answered Questions for the topic Pre-Calculus Algebra

Pre Calculus algebra

06/08/20

pre-calculus algebra need help answering the question
Select the all of the lines that are perpendicular to the line 14x - 2y = 8, passing through the point (-5, -9).Select one or more:A. x + 7y = -68B. y = 7x + 58C. 7x + 7y = 68D. x + 7y = 68E. y =... more
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Pre Calculus algebra Algebra Substitution Method

11/17/15

x-2y+3z=7,2x+y+z=4,-3x+2y-2z=-10 solve by subsiution
I would like to learn to solve the problem by substitution rather than elimination
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