exam Maths Puzzle Numerical Ability

Solve the following sytem by substitution:
4x - 12y = 5
-x + 3y = -1

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exam Other Question

Find the equation of the line passing through the point (-1,6) and parallel to the line -2x+y=9 and B) perpendicular to the line -2x+y=9

thank you A rectangle of area 63 has a lenght 2 more than its width. What is the lenght and width of the rectangle?