Answer: x = 6 . _________________________________ <span>Explanation: ____________________________________________________ </span> Given: 9x + 3 = 57 ; Solve for "x" ; <span>___________________________________ </span>Subtract "3" from EACH side of the equation: _________________________________________ 9x + 3 − 3 = 57 <span>− 3 ; _________________________________________ to get: _________________________________________ 9x = 54 ; __________________________________________ Now, divide EACH side of the question by "9" ; to isolate "x" on one side of the equation; and to solve for "x" ; ____________________________________________ 9x / 9 = 54 / 9 ; ____________________________________________ x = 6 . ______________________________________________________</span>