Answer:
2X - Y + 3Z
Step-by-step explanation:
Combine like terms. Like terms are terms that have the same variable part.
6X + 5Y − 2Z − 4X − 6Y + 5Z =
= 6X - 4X + 5Y - 6Y - 2Z + 5Z
= 2X - Y + 3Z
Answer:
False.
Step-by-step explanation:
y+9=0
y=-9
hope you have a good day/night! :)
48=16-0.5x
add 0.5 both sides
0.5x+48=16
mnus 48 boh sides
0.5x=-32
times 2 both sides
x=-64
Answer:
x=151/64 y=9/8 z=-51/32
Step-by-step explanation:
2x+2y+5z- (2x-y+z)=-1-2
3y+4z=-3
2x+2y+5z- (2x+4y-3z)=-1-14
-2y+8z=-15
We have two equations 3y+4z=-3 and -2y+8z=-15 (We get it due to elimination method)
3y+4z=-3 (2)
-2y+8z=-15 (-3)
6y+8z=-6
6y-24z=45
(6y+8z)- (6y-24z)= -6-45
32z=-51
z=-51/32
3y-204/32=-3
3y= -96/32+204/32
3y=108/32
y=36/32=9/8
2x+2*9/8+5*(-51/32)=-1
2x+9/4-255/32=-1
2x+72/32-255/32=-1
2x-183/32=-32/32
2x=151/32
x=151/64
