Subtraction
multiplication
yayyyyyyyyyyy
Answer:
10X + 20 +5X +25 = 180
15x=180-45
X= 135/15
X=9
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Not too sure what you're asking, but...
3(x+2) is the expression
D varies directly with t means
d=kt
105=3k
divide both sids by 3
35=k
d=35t
when t=8
d=35(8)
d=280
B
4-7x= 39
Subtract 4 from both sides
-7x= 35
Divide both sides by -7
x= -5
The value of x+1= (-5)+1= -4.
