Solve the following simultaneous equations: 3x+y=11, 2x+y=8

x=3, y=2

RS
Answered by Reuben S. Maths tutor

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Solve by completing the square: x^2 - 8x + 12 = 0


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Simplify and then solve by factorisation 3x(x+2)-7=2, to find x.


P has coordinates (3,4), Q has coordinate (a,b), a line perpendicular to PQ has equation 3x+2y=7. Find an expression for b in terms of a


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