Answer:
(-2, -4)
Step-by-step explanation:
–2x + 2y = -4
3х + Зу = -18
Divide the first equation by 2
–2x/2 + 2y/2 = -4/2
-x +y = -2
Divide the second equation by 3
3х/3 + Зу/3 = -18/3
x + y = -6
Add these equation together
-x +y = -2
x + y = -6
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0x + 2y = -8
2y = -8
Divide each side by 2
2y/2 = -8/2
y = -4
Now we need x
x+y = -6
x-4 = -6
Add 4 to each side
x-4+4 = -6+4
x = -2
Answer:
5
Step-by-step explanation:
Replace 20 instead of m
20/4=5
The answer would be 39.84
Answer:
8x=p
Step-by-step explanation:
So 8 time the number of hours Carmen works which I used x. Then you’ll get the total.
Answer:
C
Step-by-step explanation:
A: You can combine like terms. 2x + 3x = 5x. 2.5 + 3 = 5.5 A = 5x - 5.5
B: You can use distributive property. 5x - 5.5
C: If you use the distributive property you get 5x + 27.
D: D is 5x - 5.5
So the only one that does not equal 5x - 5.5 is C.
Hope this helps :)
