book Maths Puzzle Numerical Ability

3x + 9=5

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book Other Question

Tell whether the x-value is a soultion of the equation.

ln 2x = 14, x = 2e^14 A cheetah is 300 feet from its prey. It starts to sprint toward its prey at 90 feet per second. At the same time, the prey starts to sprint at 70 feet per second. When will the cheetah catch its prey?