exam Maths Puzzle Numerical Ability

Solve each of the equations for x.
25x^2 = 13

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exam Other Question

Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.

x + 5y = 10
-2x - 10y = -20 -3(x + 1) = 2(x-8) + 3