Plug in 3 for x
f(3) = 2(3) + 1
f(3) = 6 + 1
Solution is 7
Answer:
65
Step-by-step explanation:
Answer:
x=1
Step-by-step explanation:
We wanna have the same amount on both sides
There are 3 circles on the left and 7 circles on the right. There are also 4 triangles. Turn into numbers...
4x+3=7
4x=7-3
x=1
We can check by substituting one
7=7
Answer:
2 1/4
Step-by-step explanation:
To figure out how many pounds of jellybeans Betty has you need to subtract 6 and 3 3/4.
To subtract you need to turn 6 into a fraction by putting a 1 under it so it becomes 6/1
Then turn 3 3/4 into an improper fraction by multiply 3 by 4 which equals 12, then adding 3, so its 15/4.
Now subtract 6/1 by 15/4 but first multiply 1 by 4 and then multiply 6 by 4 so that the denominators are the same.
So now its 24/4 - 15/4
Now subtract across, which equals 9/4
This can be changed into a mixed number 2 1/4
I think it's b I hope these helpes