Answer:
x = 1, y = 2, z = 1
Step-by-step explanation:
Adding the first 2 equations to each other gives
x + y + z + 4x - y - z = 4 + 1
which simplifies to
5x = 5, so x = 1
x + z = 2 so 1 + z = 2, so z = 1 too
x + y + z = 4 = 1 + y + 1 = 2 + y so y = 2
Answer:
i think its 7/4
Step-by-step explanation:
Answer: y = 1x -3
The 1 is not necessary so
y= x - 3
Step-by-step explanation:
(y- y1) = m(x -x1). First
Substitute y and x-values from the given coordinates and solve for x.
7-(-1)=m(10-2)
8 = m(8) 8/8=1 T
m= 1 The slope, m is 1
Then substitute values of y and x from either given coordinate into the equation and solve for b, the y-intercept.
y=mx+b
-1= 1(2)+b
-1=2+b subtract 2 from both sides.
-1-2 = b
-3 = b
OR
7= 10 + b
-10 +7 = b
-3 = b
Finally, write the equation with the values for m and b
y = 1x +(-3) Simplify & Rewrite
y= x - 3
