Who is asking: Student
Level: Secondary

Hi, could you help me with these questions:

• 7-2x/3=9
• 4x+3/5=-2
• 6-2x=14
• -1/7x=-4/3+1/6

Thanks for your help!
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.

Your goal is to have only x on the left of the equal sign so subtract 21 from both sides, that is

Finally divide both sides by -2 and the equation becomes