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 :)
11-5=6
18-11-7
26-18=8
........... so on and so forth.
I think you get the point.
-1+5x
You combine like terms:
Here there are two different ones.
the number without the variable (the 1s) and the one with the variable (5x)
All you have to do is combine them:
1+(-1)+(-1) = 1-1-1 = -1
5x = 5x
So, the answer would be -1+5x
Hope this helps :D
Answer:
Step-by-step explanation:
Given
Required
Solve for A
Simply substitute 18 for b and 30 for h
Hence:
The area is
Answer:
Yes
Step-by-step explanation:
10,20,30,40,50 are all divisible by 5.
