Solve for X in the 2nd equation:
x+2z = 0
Subtract 2z from both sides:
x = -2z
Replace x in the first equation with -2z
-2z +y -z = 1
Combine like terms:
-3z +y = 1
Add 3z to both sides:
y = 3z +1
Replace x and y in the 3rd equation:
2(-2z) + 2(3z+1) = 4
-4z + 6z + 2 = 4
2z +2 = 4
2z = 2
z = 1
Now replace z with 1 in the other equations for x and y:
x = -2z = -2(1) = -2
y = 3z +1 = 3(1) +1 = 3+1 = 4
So you have x = -2, y = 4 ans z = 1
The answer would be written as (-2,4,1)
It has two solutions.
The first solution is x = -7
The second solution is x = 1
Hope this helps!
Three grams for one penny. three times eight (pennies)=24 grams
There’s nothing their. Take a photo and put it up as your question
Answer:
the ordered pair negative 6 over 8, 2 over 8
Step-by-step explanation:
Point P is plotted at the sixth grid line to the left of the y-axis
Going to the left of the y axis means negative, to the right is positive
We go left 6 units, each unit is 1/8
-6 * 1/6 = -6/8
That is the x coordinate
Second grid line above the x-axis.
Going up is positive and down would be negative
We go up 2 units, each unit is 1/8
+2 * 1/8= 2/8
That is the y coordinate
(-6/8, 2/8)
