When solved by substitution: x = 4/3 and y = 5/3
From equation 2, y = 2x - 1
Substituting this expression for y in equation 1 gives 5x -(2x - 1) = 5
this simplifies to 3x + 1 = 5 making x = 4/3 and y = 5/3
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By using the quadratic equation formula: x = -5 and x = 3
You would have to take the cube root of 400000, which equals 73.68
You'd need another equation to sub in
To start, try breaking down sin3x using a double angle formula. Message me if you need more help!
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