8x+1=x-6
7x+1=-6
7x=-7
X=-1
Y=x
Y=-1
I think it is the fourth one
The answer is: Substitution property of equality.
The explanation is shown below:
1. To solve this problem you must apply the proccedure shown below:
2. When you clear the variable x from the first equation, and subtitute it into the second equation, you obtain:
<span>3x−2y=10
x=(10+2y)/3
4x−3y=14
</span>4[(10+2y)/]−3y=14
<span> y=-2
3. When you subsitute y=-2 into the first equation and clear the x, you have:
x=2
</span>
Y=7
X=-3
The following graph
Answer:
The expression that converts 8 radians to degree is: degrees = (8 rad)*180/pi
Step-by-step explanation:
To convert any number from radians to degrees we must use the equation below:
degrees = radians*180/pi
Therefore to convert 8 radians to degree we need to apply this value to the formula above:
degrees = 8*180/pi
degrees = 1440/pi
degrees = 458.366º
The expression that converts 8 radians to degree is: degrees = (8 rad)*180/pi
