all my answers where deleted for "not explaining" but most of them where how to find the answer your self bring this to the attention of mods and prove this is an outrage this question was just deleted MAKE OUR VOICES HEARD

Which linear equations have an infinite number of solutions? check all that apply.  (x  –  3/7)  =  2/7(3/2x  –  9/14)8(x  +  2)  =  5x  –  1412.3x  –  18  =  3(–6  +  4.1x)(6x  +  10)  =  7(x  –  2)4.2x  –  3.5  =  2.1 (5x  +  8)

What is x3+3x2−16x−48 divided by x−1?

I’ve been trying all day to figure this puzzle out. i need the work for it aswell. it is a factoring polynomials tarsia. the image is below.