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Maths Puzzle
Numerical Ability
Solve: 3^x * 9^-x =27^x
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I have tried to work this problem and I am confused.
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Now this is a challenge for me. the question reads, write an equation in slope-intercept form of the line that passes through a given point and is perpendicular to the graph of each equation. problem #33 is (6, -13), 2x - 9y = 5