Who is asking: Student Level: Secondary Hi, could you help me with these questions: Find x & solve 7-2x/3=9 4x+3/5=-2 6-2x=14 -1/7x=-4/3+1/6 I have loads of these to do, please explain how to do them. Thanks for your help! Maria Hi Maria, 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. 7 - 2x/3 = 9 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 = 27 21 - 2x - 21 = 27 - 21 -2x = 6 Finally divide both sides by -2 and the equation becomes -2x = 6 -2x/(-2) = 6/(-2) x = -3 Cheers Penny Go to Math Central