You need to get the x by it's self. I will demonstrate below. Remember that when you move a number to the other side of the equal sign, it changes from positive to negative or negative to positive. 5.5x+32=57 5.5x=57-32 5.5x=25 x=25/5.5 x=4.54 Hope this helps!
16. i’m pretty sure cause the ratio would be 42/24 28/x if you divide PQ by LM, the answer is the same number you would use to divide LM to get MN and finish your ratios