exam Maths Puzzle Numerical Ability

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Solve for y.
x + 3y = 6
3x=6+2y
x=6+2y/3

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exam Other Question

i need help with this one problem. Find three consecutive even integers such that three times the middle integer is six more than the summ of the first and third. Add or subtract as indicated. Simplify the result, if possible.
{4x/x + 5 + 20.x + 5}
{3x^ + 2x/x - 1 - 10x - 5/x - 1}
{x/x - 2 + x - 4/2 - x}