R+4.6+9=3r-11.7-7r
combine all like terms on one side of the equal sign
r+4.6-4.6+9=3r-11.7-7r-4.6
r+9-9=3r-11.7-7r-4.6-9
r-3r=3r-3r-11.7-7r-4.6-9
r-3r+7r=-11.7-4.6-9-7r+7r
r-3r+7r=-11.7-4.6-9
add them all into one term on each:
5r=-25.3
divide by 5 on both sides:
r= -5.06
Answer:
x = 1
Step-by-step explanation:
So, let the unknown number be x
then 3x + 4 = 7
3x = 7 - 4
3x = 3
x = 3/3
x = 1
Hope this helps
Answer:
103.96
Step-by-step explanation:
The answer is 939.44 - 835. 48
we can do like: 939.44 - 835. 48 = 103.96 ( 938 -835 = 103 and 144 - 48 = 96).
Have a good day
