exam Maths Puzzle Numerical Ability

i CANNOT FIGURE THIS PROBLEM OUT AT ALL

4A-3A[5-2(A+2)]

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exam Other Question

is the number 47 a composite number? Tell whether the ordered pair is a solution of the linear system.

(-2,15);
y = -3x + 9
y = 5x + 25

Someone please help me with this equation,any help would be appreciated :)