Answer:
X= - 1/6
Step-by-step explanation:
Well its 16/7 = -8x
We can do a proportion over here
so 16/7 = -8x/1
Now just cross multiply to solve proportion
-56x=16
divide -56 to isolate x
x= 16/-56
Now simplify 16/-56
which is -1/6
So negative 1/6
Answer:
Step-by-step explanation:
8 boys, x girls, 4 pencils each, total number of pencils 52.
The equation can be 4(8+x) = 52
So lets solve:
4(8+x)=52
Divide 4 on both sides:
8 + x=52 / 4
8 + x = 13
Subtract on both sides:
x = 13 - 8
x = 5
There are 5 girls in the class.
Now lets solve to double check:
4(8+5)=52
4(13)=52
52 = 52
Yes!
This means that there are 5 girls in the class.
I hope this helps! :)
Answer:
7b + 3b
Step-by-step explanation:
Add 4x
to both sides of the equation.
a. y=4x+6
Add 5x to both sides of the equation.
b. y=5x+21
