exam Maths Puzzle Numerical Ability

Solve by elimination:

2x+3y=21
5x-2y=-14

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exam Other Question

Find the slope of the line with the equation 3x - 2y = 1 The graph of the relation x^2 - 4y^2 + 2x - 8y - 10 = 0 is a (an)

a. point
b. straight line
c. pair of intersecting straight lines
d. circle
e. ellipse
f. hyperbola
g. parabola
h. none of these