Ok here is how to solve these I hope this helps
7 = 2-5m
+5m +5m
7+5m = 2
-7 -7
5m = -5
/5 /5
m=-1
<span>-Hope this helps :)</span>
You put them in fractions then cross multiple.
18/12 and 3/x so that's 36 equals 18x then you divide 36 by 18 which is 2.
X + 3 = 0
2x - 1 = 0
It would be D.