exam Maths Puzzle Numerical Ability

Solve for x:
4x = 3xy-2

Im not sure if I divide both sides by 3x (including the "-2") or if I divide both sides by x.

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exam Other Question

how do you find a restriction for an equation? Hi,
Please help me with the follwoing problem: Solve 0=1-sin(2*pi*t)for 0 < t < 2 (both are or equal to). I don't even have the vaguest idea on how to solve this problem. Any hel