exam Maths Puzzle Numerical Ability

3x/x-1 + 6x-9/x-1 -6 =0 solve for x. the numbers in front are fractions

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exam Other Question

I need to solve the following system of linear inequalities by graphing.

3x + 4y < or = 12
x + 3y < or = 6
x > or = 0
y > or = 0 How many cans each with a capacity of 3/8 gallon can be filled from 2 barrels of oil each containing 31 1/2 gallons?