Who is asking: Student Hi, could you help me with these questions: Find x & solve
Thanks for your help! I will do the first problem and this should help get you started. I think that it helps to think of an equation as a balance. Here you have 7  2x/3 on one side of the balance and 9 on the other. The goal is to perform steps that maintain the balance and result with x on one side and some number on the other. That is you want x = ??? With this equation I would first multiply both sides by 3 since that will maintain the balance and eliminate the fraction. 3(7  2x/3) = 3(9) 3(7)  3(2x/3) = 27 21  2x = 27 Your goal is to have only x on the left of the equal sign so subtract 21 from both sides, that is 21  2x  21 = 27  21 2x = 6
Finally divide both sides by 2 and the equation becomes 2x/(2) = 6/(2) x = 3 Penny
