Answer:
in a parallelogram .......the sum.of adjacent angles is 180
11x-10+80=180
11x=110
x=10
Answer: 17
Step-by-step explanation:
i just guessed
Answer:
1. (x, y) = (0, -3)
2. (x, y) = (-1, -1)
Step-by-step explanation:
For the first problem, the lines in the attached are red and orange.
For the second problem, the lines in the attached are blue and purple.
Answer:
1) x= -1/27
2) x=-4
3) x=13
Step-by-step explanation:
1) 7+7/9x= = -42
14/9x= = -42
14/9x X 9x= -42 X 9x
14= -378x
-378x= 14
-378x/-378= 14/-378
x= -1/27
2) 4x+1=−15
4x+1-1=-15-1
4x=-16
4x/4= -16/4
x=-4
3) −4(x−3)=−40
-4(x-3)/-4= -40/4
x-3=10
x-3+3=10+3
x=13