- linear pairs are supplementary, meaning they add up to 180°
5x + 9 + 3x + 11 = 180
8x + 20 = 180
8x = 160
x = 20
- now plug in.
angle 1: 5(20) + 9 = 100 + 9 = 109°
angle 2: 3(20) + 11 = 60 + 11 = 71°
I am guessing that you are looking for the value of "x"!
Here we go :
18x - 2(3x + 1) = 5x - 16
Let's start with the parentheses :
-2 × 3x = -6x
-2 × 1 = -2
18x - 6x - 2 = 5x - 16
subtract 6x from 18x
12x - 2 = 5x - 16
add 2 on both side of the equation
12x = 5x - 14
subtract 5x from both side of the equation
7x = -14
divide by 7 on each side of the equation
x = -2
There you go! I really hope this helped, if there's anything just let me know! :)
Step-by-step explanation:
-9x-4y=1....eq1
3x+3y=3.....eq2
multiply eq2 by 3
to get
9x+9y=9....eq3
add eq1 and 3
0+5y=10
5y=10
divide both sides by 5
y=2
substitute y=2 in to eq1
-9x-4(2)=1
-9x-8=1
grouping of like terms
-9x=1+8
-9x=9
divide both sides by -9
x= -1
now the answer is
x= -1, y=2
Answer:
3x^2-6x+3=0
x^2-2x+1=0
x^2-x-x+1=0
x(x-1)-(x-1)=0
(x-1)(x-1)=0
x=1,1
so x has only one answer
so it intersects only one time
The answer is -16. Here's the explanation:
3 x - 10 = 5x + 22
3x - 5x = 22 + 10
-2x = 32
x = -16.
I hope this helped you!!!!!! :)
