The first equation can be rewritten as 2x - y = - 6. I will then substitute the second equation in where the y-variable is. This give you the equation:
2x - (x - 1) = - 6.
Distribute the negative to both terms in the parentheses.
2x - x + 1 = - 6
Combine like terms
x + 1 = - 6
Subtract 1 from both sides
x = - 7
Now plug in - 7 where x goes.
y = - 7 - 1
y = - 8
Your solution is (- 7, - 8)
Answer: y= 2/3x+3
Step-by-step explanation: Hope this helps.
Answer:
x +0y+0z = 400
-x +y+0z = 150
-8x +0y +z = 250
Step-by-step explanation:
The last column is the solution
The rest of the columns are the coefficients of the variables
x +0y+0z = 400
-x +y+0z = 150
-8x +0y +z = 250
