I can’t figure this out

Use the quadratic formula to solve 5x=6x^2-3,what are the values of x?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?