X = -3
Solution:
Distribute
6(x)+(6)(-1)+-x=-21
Combine
(6x+-x) + (-6) = -21
5x + -6 = -21
5x - 6 = -21
Add 6 to both sides
5x -6 + 6 = -21 +6
5x = -15
Divide both sides by 5
5x/5 = -15/5
x = -3
Answer:
1)4x+4y=1, 6x−y=1
x+y=4, x−y=2
x+y=−2,x+2y=2
2)2x+y=3, 2x−8y=19
Step-by-step explanation:
hope this helps
have a nice day ^_^
Answer:
An angle is formed when two rays share a common endpoint.
Step-by-step explanation:
You just switch the signs:
So the polynomial would be, -5x^2+3x+9
I hope this helps!