exam Maths Puzzle Numerical Ability

In exercise 7-14, an eqyatuib abd two ordered pairs are given. Sho that each pair is a solution of the equation. Than graph the two pairs to determine another solution. Answer may

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exam Other Question

If one ball is drawn without replacement from an urn with two red balls, three white balls, and three blue balls, what is the probability of drawing a red ball?

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Mo Hi i need major help on how to solve an equation using the substitution method the equation is as follows {3x + y = 21,
10x +5y =65