Answer:
n=-1
Step-by-step explanation:
-8n+4(1+5n)=-6n-14
-8n+4+20n=-6n-14
12n+4=-6n-14
12n+6n=-14-4
18n=-18
We can use the distribution method for this:
1/2r - 3 = 2(4 - 3/2r)
Multiply 2 by everything inside the parentheses:
1/2r - 3 = 8 - 3r.
Move variables to one side, and numbers to another:
1/2r + 3r = 8 + 3.
3 1/2r = 11.
7/2r = 11.
Divide by 7/2:
r = 22/7.
Not sure this is correct.
Answer:
x > 3
Step-by-step explanation:
The inequality to solve is:
5 - 4x < - 7
We will solve this using same method as solving an equation. We will take numbers to one side and variables to another and multiply and divide accordingly.
So,
That means "x is greater than 3", so we can write:
x > 3
Answer:
Yes
Step-by-step explanation:
Roberto 4:6 = 2:3
divisor 2. 4/2=2 6/2=3
Casey 6:9 = 2:3
divisor 3
6/3=2 9/3=3
