Answer:
x = 10
Step-by-step explanation:
We know that the sum of angles in a triangle is equal to 180 degrees;
This means that
71+50+(6x-1) = 180; now that you have an algebraic expression, you can solve for x.
71+49+6x=180
120+6x = 180
6x = 60
x = 10
This graph below has your answer
Answer:
B and D
Step-by-step explanation:
Equations with the same x- term on both sides will have no solution
A
4x - 13 = 5(x + 4) = 5x + 20
4x ≠ 5x
This equation has a solution
B
5(3 + 2x) = 10x + 4
15 + 10x = 10x + 4
10x on both sides ⇒ no solution
C
2(3 - 5x) = 8(x + 1)
6 - 10x = 8x + 8
- 10x ≠ 8x
This equation has a solution
D
9x - 6 = 3(3x - 2) = 9x - 6
9x on both sides ⇒ no solution
Answer : 2ab^3+4a^2b-5ab+5
Answer:
k = {3, 11}
Step-by-step explanation:
Taking the square root of the given equation, we find ...
x +k = ±4
For x = -7, this is ...
-7 +k = ±4
k = 7 ±4 = {3, 11}
Possible values of k are 3 and 11.
