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vredina [299]
4 years ago
14

Solve each system using elimunation x + y =2x —y =4

Mathematics
1 answer:
g100num [7]4 years ago
3 0

Answer:

solution is (3, - 1)

Step-by-step explanation:

given the 2 equations

x + y = 2 → (1)

x - y = 4 → (2)

Adding the 2 equations term by term will eliminate the y-term

(x + x) + (y - y) = (2 + 4)

2x = 6 ( divide both sides by 2 )

x = 3

substitute x = 3 in either (1) or (2) for y

(1) → 3 + y = 2 ( subtract 3 from both sides )

y = 2 - 3 = - 1

solution is (3, - 1)


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We have

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ANSWER

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Refrection of a function across the y-axis, changes the sign of x in the function.

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The graph of f(x)=(8)^x and h(x)=-(8)^{-x} is attached.
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