(5x^7y^2)(-4x^4y^5)=-20x^a y^b
<span>-20 x^11 y^7 = -20 x^a y^b </span>
<span>a = 11, b = 7 thus a: is you answer</span>
4.8 is the one I just took this
I use the substitution method, but you can also use elimination and matrix
1. Solve for y in 3x+y=14
y=14-3x
2. Substitute y=14-3x into x+2y=3
-5x+28=3
3. Solve for x in -5x+28=3
x=5
4. Substitute x=5 into y=14-3x
y=-1
5. Therefore,
x=5
y=-1
Have a nice day :D
Answer:
1.5
Step-by-step explanation:
5/100×30
=1.5
HOPE IT HELPS!!!
Answer:
x=9
Step-by-step explanation:
- -54 + 6x = 6 • (x - 9)
- Solve : 6 = 0
- Solve : x-9 = 0
- Add 9 to both sides of the equation : x = 9
