book Maths Puzzle Numerical Ability

50(x-1)=40x

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How do you write and expression for each situation?1./7 more than x= 2./5 and p more= I do not have a textbook because I am home schooling. If anyone can help I would be grateful>

Al goes 8mph; Ben goes 22mph in the opposite direction. How many hours has Ben traveled before they are 180 miles apart?