Answer: -10, 10
Step-by-step explanation:
first lets add the two equations. add the x's, add the y's, add the constants on the right.
we get
0x - 1y = -10
so then divide --10 by -1 because we do the opposite operations to both sides
and we get y = 10
now substitute y = 10 into the first equation
-10x - 9(10) = 10
and then we get -10x - 90 = 10
now add 90 to both sides
-10x = 100
divide 100 by -10
x = -10
y = 10
checks out
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I have the best ans and that is
Answer:
Infinite.
Step-by-step explanation:
3(x+1)-5=3x-2
3x+3-5=3x-2
3x-2=3x-2
True for any number.
Answer:
A. $46,650
Step-by-step explanation:
Taking the first number of $50,150, we have to subtract his expenses. After subtracting Leroy's expenses, we get $46,650.
50150
<u>- 3500</u>
46650
Answer: (30m-9n)/270
First we start with m/9-n/30.
We multiply the denominators to get 270.
Then we multiply the numerators by the original denominators to get (30m-9n).
To check, we can use m=2, and n=4
2/9-4/30=4/45
(30*2-9*4)/270=24/270=4/45
