Answer:
3^-5
Step-by-step explanation:
x^-3=1/x^3
this rule applies to all negative exponents lol
minus 4 both sides
square both sides
x+2=4
minus 2
x=2
<span>the answer is
x = 2; not extraneous</span>
Answer:2x-y-6=0 & 2x-y=6
Step-by-step explanation:
-3y=-6x+18.
-3y+6x=18
-y+2x=6
2x-y=6
2x-1y=6
2x-y=6
2x-y-6=0
Answer:
x=5, y=8
Step-by-step explanation:
Since both equations equal y, we can set them equal
y = x + 3
y = 2x - 2
x+3 = 2x-2
Subtract x from each side
x-x+3 = 2x-x-2
3 = x-2
Add 2 to each side
3+2= x-2+2
5 =x
Now we need to find y
y =x+3
y=5+3
y=8
Can you tell us the question?
