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4 years ago

What is the solution to the system of equations?

Mathematics

1 answer:

yarga [219]4 years ago

8 0

Answer:

(2, - 4 )

Step-by-step explanation:

Given the 2 equations

x + 2y = - 6 → (1)

3x + y = 2 → (2)

Multiplying (2) by - 2 and adding to (1) will eliminate the term in y

- 6x - 2y = - 4 → (3)

Add (1) and (3) term by term to eliminate y

- 5x = - 10 ( divide both sides by - 5 )

x = 2

Substitute x = 2 into either of the 2 equations and solve for y

Substituting into (1)

2 + 2y = - 6 ( subtract 2 from both sides )

2y = - 8 ( divide both sides by 2 )

y = - 4

Solution is (2, - 4 )

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3 years ago

10 13 ? start fraction, 13, divided by, 10, end fraction of a number is what percentage of that number?

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Answer:

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Step-by-step explanation:

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3 years ago

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What angle has the same sine value between 0-180? as Sin 24

Inessa05 [86]

Answer:

$Sin156$

Step-by-step explanation:

Given

$Sin24$

Required

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3 years ago

1/10 + x/100= 6/x<br><br> One-tenth plus x over 100 equals 6 over x what is the value of x

musickatia [10]

Answer:

x1=20;

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10x+x^2=600

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x+5=25 0r -25

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3 years ago