.125
.5*.5*.5
head*tail*tail
X = 5 -
-7x - 3x + 2 = -8x - 8
+ 7x +7x
-3x + 2 = -x - 8
+3x +3x
2 = 2x -8
+8 +8
10 = 2x
/2 /2
x = 5
Please provide more context for our brains to understand your problem (: thank you!
40 over 100 and 55 over n cross multiply 55 x 100 and divide by 40.which gives you 137.5