Answer:
Step-by-step explanation:
3-x-3x=5
first combine like terms
3-4x=5
-4x=2
divide each side by -4
x=2/-4 or -1/2 or -0.5
Answer:
7. x>20
9. Step 2
Step-by-step explanation:
7. -x +5 -5<20-5
-x<20
x>20
9. Instead of adding 4 to 20 he subtracted it.
it should be 4 x > 24
x >6
hope this helps :))
The answer to your questions are......
1.
B. 8........(8 + 7)(8 - 8) = 0
C. -7........(-7 + 7)(-7 - 8) = 0
2.
A. 1/3.......(3*1/3 - 1)(5*1/3 + 20) = 0
C. -4.......(3*-4 - 1)(5*-4 + 20) = 0
Hope this helps! :)
Answer:
x degrees = 50 degrees.
x + 50 degrees = 50 + 50 = 100 degrees
(180 - 3x) degrees = (180 - 3*50) = 30 degrees.
Step-by-step explanation:
In a triangle, the sum of all inside angles must be 180 degrees.
In this question:
The inside angles are: x, x + 50 and 180 - 3x.
Then
x + x + 50 + 180 - 3x = 180
2x - 3x = -50
x = 50
So
x degrees = 50 degrees.
x + 50 degrees = 50 + 50 = 100 degrees
(180 - 3x) degrees = (180 - 3*50) = 30 degrees.
Answer
<span>irrational number set
hope it helps</span>
