exam Maths Puzzle Numerical Ability

1.9/3+3a/4=13/3
2.5x-2/3=8-3x/5
3.b-2/b+4=b+1/b+10
4.5y-1/2-3y+5=7y+13/6

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exam Other Question

Write an equation or inequality for the verbal statement "seven is less than 4 times a number B." Please help!

I am supposed to add or subtract as indicated and express the results in simplest form.

(X^2)/(x- 3)- (9)/(x- 3)