Which equation has infinitely many solutions?
1.) 1-2x=2(1-x)
2.) 2x=1-2x
3.) 2x= -1/2x
4.) 1-2x= -(2x-1)

Julius sold five times as many computers as sam sold last year. in total, they sold 78 computers. how many computers did julius sell?

If you have the following equation, 2/3x+5/6-x=2-3/4x what would you multiply each term by to get rid of all the fractions

Using elimination, what is -4x+2y=-12 4x+8y=-24