exam Maths Puzzle Numerical Ability

how do you solve |x-y|+6-4(3/2x+5)=4x-1/2+6x-5/2

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exam Other Question

y+2=5/3 (x+6) A chemist has 300 mililiters (ml) of solution that is 18% acid. How many mililiters of acid are in the solution?