Respuesta :
3x+(3x-4)= 2
when you solve for y you gotta put it in slope intercept form. then you can substitute it in to your equation. hope this helps!
when you solve for y you gotta put it in slope intercept form. then you can substitute it in to your equation. hope this helps!
Answer:
x= 1 and y = -1
Step-by-step explanation:
3x + y = 2
y+ 4 = 3x
For the following system, use the second equation to make a substitution for y in the first equation.
LEts start with second equaiton y+4 = 3x
Solve for y, subtract 4 from both sides
y = 3x- 4
Now substitute y = 3x -4 in first equation
3x + y = 2
3x + 3x -4 = 2
combine like terms
6x -4 = 2
Add 4 from both sides
6x = 6 (divide by 6)
x= 1
To solve for y we plug in x=1 in y= 3x-4 equation
y=3(1)-4= -1
so x= 1 and y = -1
