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Aleksandr [31]
2 years ago
10

X - 2y = -3 2x + y = -1

Mathematics
2 answers:
lianna [129]2 years ago
7 0

Answer:

it can only be simp[lified

so it will be

(x+2x)+(y+2y)=-3-1

3x+3y=-4

cannot be solved further

Step-by-step explanation:

bezimeni [28]2 years ago
3 0

Answer:

y = 1

x = -1

Step-by-step explanation:

x - 2y = -3, then x = 2y - 3

2x + y = -1

substitute for x:

2(2y - 3) + y = -1

4y - 6 + y = -1

5y = 5

y = 1

x = 2 - 3 = -1

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Eduardwww [97]

Answer:

C = -80

Step-by-step explanation:

Solve for c by simplifying both sides of the equation, then isolating the variable.

4 0
3 years ago
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Kamau is now 2 years older than Jane if James age is y now what will be the total age in 10 years​
cluponka [151]

Answer:

(2y + 22) years

Step-by-step explanation:

kamau is now 2 years older than Jane if Janes age is y now what will be the total age in 10 years​.

Answer: If Jane is y years old now and Kamau is 2 years older than Jane, therefore the age of Kamau now would be 2 + y years.

In ten years time Jane age would be y + 10 years while the age of Kamau would be y + 2 + 10 = y + 12 years.

To get their total age we just have to add their individual age. Therefore the total age in 10 years​  = Age of Kamau in ten years + age of Jane in ten years = (y + 12) + (y + 10) = y + 12 + y + 10 = y + y + 12 + 10 = 2y + 22 years

6 0
3 years ago
Linear equations substitution
Nataly_w [17]
For example, y=x+4 and y=5x+2.
That would mean that x+4=y=5x+2.
Simplify it to x+4=5x+2.
x=5x-2
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x=1/2.
Now, plug x into one of the equations.
y=x+4
y=1/2+4
y=9/2.
Therefore, the POI is (1/2,9/2).
6 0
3 years ago
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Fed [463]

Answer:

Step-by-step explanation:

-4=2x+16

-16. -16

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5 0
3 years ago
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Nimfa-mama [501]
Because if you multiply 2 different irrational numbers (like the following)
\sqrt{3} \times  \sqrt{17}
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BUT
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\sqrt{3}  \times  \sqrt{3}  = 3
7 0
3 years ago
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