W+d=869
w=d-81
plug in
(d-81)+d=869
2d-81=869
+81 both sides
2d=950
÷2 both sides
d=475
dryer cost $475
let's check w=475-81
w=394
475+394=869
869=869
the solution is true :)
Answer:

Step-by-step explanation:
we have:

we also have:

from (1)(2) => proven
Answer:
10
Step-by-step explanation:
Answer:
588000
Step-by-step explanation:
if i am wrong pls tell me cause i think there's a different answer gl g