Adding all of these should equal to 180 from the way the angle is set up.
So the equation should be:
(3x + 2) + (2x + 5) + (2x - 9) = 180
You can remove parentheses as it doesn’t affect the equation since it is all addition.
Let’s first add the common variables together.
3x + 2x + 2x = 7x
2 + 5 + (-9) = -2
So now we should have:
7x - 2 = 180
Now add 2 to both sides.
7x = 182
Divide both sides by 7 to isolate x.
x = 26
So x is 26.
A.) -11
b.) 31
c.) -208
d.) 12
e.) -47
f.) -28
I hope this helped (I used bedmas)
Answer:
16 cities
Step-by-step explanation:
if 5days = 10 cities
8days=?
applying cross multiplication :
(8days × ten cities )÷5 day
= 16 cities
9514 1404 393
Answer:
x = 2, x = 6
Step-by-step explanation:
The quadratic can be factored as ...
x^2 -8x +12 = 0
(x -2)(x -6) = 0
Solutions are the values of x that make these factors zero:
x -2 = 0 ⇒ x = 2
x -6 = 0 ⇒ x = 6