for what value of the variable is the value of the expression -3(2x+1) is 20 greater than the expression 8x+5

Miranda is braiding her hair.then she will attach beads to the braid.she wants 1_3 of the beads to be red.if the greatest number of beads that will fit on the braid is 12,what other fractions could represent the part of the beads that are red?

What expression is equivalent to 42x-56y

With alll of except for the 2 that i did already