exam Maths Puzzle Numerical Ability

Find the solution by substitution:
3x+8y=22
10x-2y=16

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exam Other Question

(a) 2(2x + 1)
(b) 4(3x-5)
(c) (7a +2)3
(d) 3m(2-n)
(e) 4m (3+5n) Find the equation of the line through the given point that is perpendicular to the given line. y=-2/3x+7, R(4,-1)