exam Maths Puzzle Numerical Ability

One number is five more than another number. Their sum is 285. what are they?

5x+x=258
6x=258
6x/6=258/6
x=47.5

5x
5(47.5)
237.5

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exam Other Question

Yes it is me again here is another problem.

x+5/8+(3x/4)=2/3+5x

please show work!!!!!!

Thanks!
The length of a rectangle is 5m greater than the width.
The perimeter is 150m. find the width and length.