Is -5 a solution to the question to the equation 6x+5=5x+8+2x

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

Solve for x and select the correct answer