Answer:
<em>x = 2 </em>
Step-by-step explanation:
27x + ( 2x - 1 ) = 57
29x - 1 = 57
29x = 58
<em>x = 2</em>
You would do the opposite of what he stated. So you would do $22.20 divided by 12. Which would be $1.85. So a carton of eggs costs $1.85. You would then multiply $1.85 by 7 and get $12.95.
1) 113
2) 128
3) 69
4) 92
5) 63
6) 108
Hope this helps :)
W + d = 770
w = d + 70
d + 70 + d = 770
2d + 70 = 770
2d = 770 - 70
2d = 700
d = 700/2
d = 350 <=== cost of dryer