11x + 2 = 2x -7
Please explain how you did the work and how you got your answer

The square root of 9x plus 7 plus the square rot of 2x equall to 7

Suzanne began a trip with 18 1/2 gallons of gas in the gas tank of her car if she hughes 17 3/4 gallons on the trip how many gallons does she have left once she finish the trip

Which of the following is the best first step in solving the equation below? 4+2㏒³x=17