1). n+3=8
2). 2-3n=11
3). 1/4+x
4). 2x-1=12
5). 5x = 9x
Answer:
3.4 kilograms
Step-by-step explanation:
Answer: 200+40x=600
Step-by-step explanation:
200+40x=600
600-200=400
40x=400
40/40= 1 or x
400/ 40=10
x=10
The expression represents commutative property of addition
Hope this helps
-AaronWiseIsBae
9 - (a - 7)
Note that - = -1
First, distribute - 1 to all terms within the parenthesis
-1(a - 7) = -a + 7
9 - a + 7
Combine like terms
9 + 7 = 16
-a + 16, or A. 16 - a is your answer
hope this helps