exam Maths Puzzle Numerical Ability

i dont know how to solve equations with two variables on both sides

ex:5x - 32 = 1n + 8

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exam Other Question

A man who weighs 175 pounds on earth weigh 28 pounds on the moon. How much would his 30 pound dog weigh on the moon? the sum of the reciprocals of two consecutive odd integers is 20/99. find the two integers.

pleasee helpp