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bagirrra123 [75]
3 years ago
14

Solve the system of linear equations using elimination.

Mathematics
1 answer:
m_a_m_a [10]3 years ago
5 0

Answer:

Option A) x = 3 and y = 5

Step-by-step explanation:

−7x + 3y = −6_____ first equation

−3x + 3y = 6_____ second equation

Since both equations have "y" that share the same coefficients (that is 3),we can solve this equation.

---First step is to subtract the equation 2 from 1

−7x + 3y = −6

−3x + 3y = 6

From the above equation, we have

-4x = -12

Divide both sides by -4

X = 3

--- Substitute x = 3 in equation 1

−7x + 3y = −6

-7(3) + 3y = -6

-21 + 3y = -6

3y = 21 - 6

3y = 15

Y = 5

X = 3 and y = 5( option a)

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Mai wants to make a scale drawing of her kitchen. Her kitchen is a rectangle with length 6 m and width 2 m. She decides on a sca
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Answer:

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Step-by-step explanation:

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Scaling is a method to represent big structures on paper.

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Here, the scale factor used is 1 to 40.

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<em></em>

Please refer to the attached image as well for representation of given scale.

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