29 SAT PQ S1, System of Equations  (Simultaneous Equations) with Infinitely many Solutions

29) a(-b + x) = 9x - 12 If infinitely many values of x satisfies the equation above and a and b are constants, what is the value of b? enika's, System of Equations enika's, Simultaneous Equations enika's, System of Equations with infinitely many Solutions enika's, Simultaneous Equations with infinitely many Solutions