exam Maths Puzzle Numerical Ability

How do I solve this for x:

ax-2=bx+5

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exam Other Question

suppose you are playing a game in which weo fair dice are rolled. you need 9 to land on the finish by an exact count or 3 to land on a "roll again" space. what is the prbability of landing on the finish or rolling again The length of the shadow of a tree is 30 feet. At the same time of the day, a birdbath with a height of 3 feet has a shadow of 2 feet.

What is the height of the tree?