exam Maths Puzzle Numerical Ability

okay.
i need help with this one..

its called system of linear equations

3x+2y=10.

i have no clue how to do it.

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exam Other Question

change the exponential expression to an equilvalent expression involving a logarithm, 16 = 2^4

Thanks in advance The twins, Oscar and Meir, had a farm where they raised pigs and turkeys. One day, they decided to take an inventory of their livestock. Each of them agreed to count two things, wh