Answer:
I would think it's X= -29 1/3
Step-by-step explanation:
You have 20 1/3 already, and to get to a negative when you have a positive number, to the positive you would need to add a larger negative. (If that makes any sense, it's hard to explain.) So you have to get rid of the 20 1/3 and you have to get to -9, so I would add a 9 to 20 1/3 to get 29 1/3, and make that number negative because then it will cancel the positive out. Making it -9.
<span>3x + y= 17 (a)
4x + 2 y = 20 (b)
Multiply (a) by 2:
6x + 2y = 34 (a)
4x + 2y = 20 (b)
make: (a) - (b)
2x = 14 -----> x =7
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Replace the value of x = 7 in one of anterior equation:
</span>3x + y= 17
3 x 7 + y = 17
21 + y = 17
y = 17 - 21
y = -4
Answer:
she would need to work 14 hours
Step-by-step explanation:
if you decrease 125 from 335 you would need to find out how to get 210 from 15 if you multiply 14 and 15 together you would end up with 210
Answer:
<u>The equations system has multiple solutions for x, y.</u>
Step-by-step explanation:
Let's solve for x and y this equations system:
We can observe that the second equation is a simplification of the first (divided by 2) and therefore, the system has multiple solutions for x and this way:
x y
-27/5 -5
-21/5 -4
-3 -3
-9/5 -2
-3/5 -1
3/5 0
9/5 1
3 2
21/5 3
27/5 4
33/5 5
