Three less than a certain number is 12 less than than twice the number. find your number. solve each step.

In simplified exponential notation, the expression a^2•a^-3•a 1/a 0

Which of these equations, when solved, gives a different value of x than the other three? a9.1 = -0.2x + 10 b10 = 9.1 + 0.2x c10 – 0.2x = 9.1 d9.1 – 10 = 0.2x

Which equation is y = -6x2 + 3x + 2 rewritten in vertex form?