It is pretty long, hope you understand
x+y+z=6
+
2x-y+z=3
-------------
3x+2z=9
->3x=9-2z (1)
3x-z=0
3x=z (2)
From (1)+(2)-> z=9-2z
solve for z
-3z=9
z=-3 (3)
plug (3) in (2)
->3x=-3
->x=-1 (4)
Plug (3) and (4) in <span>x+y+z=6
</span>-3+y+(-3)=6
solve for y
y-6=6
->y=12
Answer:
x=-1
y=12
z=-3
Answer:
5x+ 13x = 180
Step-by-step explanation:
The two angles form a straight line, which is equal to 180 degrees
We can add the angles together which will total 180
5x+ 13x = 180
Answer:
7/ 15
Step-by-step explanation:
2/ 5 × 7/ 6
reduce the numbers
1/ 5 × 7/ 3
multiply
= 7/ 15
hope it helps!
Answer:
x = 2
y = 2
Step-by-step explanation:
y = 3x-4
2x + y - 6 = 0
-3x+y = -4
2x + y = 6
-5x = -10
x = 2
y = 2
