SOLUTION: How do you solve:
3x + y = 8
y= x + 4
Algebra.Com
Question 20849: How do you solve:
3x + y = 8
y= x + 4
Answer by kapilsinghi(68) (Show Source): You can put this solution on YOUR website!
3x + y = 8 ------------1
y= x + 4 ------------2
subtituting value of y from equation 2 to 1
3x + x + 4 = 8
4x + 4 = 8
4x = 8 -4
4x = 4
x = 1
Equation 2 says y = x + 4
so y = 1 +4
y = 5
kapilsinghi123@gmail.com
RELATED QUESTIONS
How do you solve the problem... (answered by richard1234)
How do you solve y = 3x +... (answered by tommyt3rd)
How do you solve this three-variable system?
{x+2y+z=4
{2x-y+4z=-8... (answered by Alan3354)
How do you solve this problem?
x+y+z-w=2
3x+y-z+w=8
x-5y+2z+w=1... (answered by Edwin McCravy)
how do you solve
y=3x
y=x-4
using substitution (answered by TeishaRenee,richard1234,Alan3354)
y=x+4
y=3x
How do you solve the system of... (answered by praseenakos@yahoo.com)
how do you solve 4=... (answered by solver91311)
How do you solve... (answered by Fombitz)
how do you do a line equation for y=3x+5, solve when x=-1 and... (answered by Alan3354)