Y=6x-11 -2x-3y=-7 solve each system of equation by substitution

Mathematics

1 answer:

Anit [1.1K]3 years ago

5 0

Answer:

(2, 1 )

Step-by-step explanation:

Given the 2 equations

y = 6x - 11 → (1)

- 2x - 3y = - 7 → (2)

Substitute y = 6x - 11 into (2)

- 2x - 3(6x - 11) = - 7 ← distribute and simplify left side

- 2x - 18x + 33 = - 7

- 20x + 33 = - 7 ( subtract 33 from both sides )

- 20x = - 40 ( divide both sides by - 20 )

x = 2

Substitute x = 2 into (1) for corresponding value of y

y = 6(2) - 11 = 12 - 11 = 1

Solution is (2, 1 )

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The perimeter is equal to 2(width) + 2(length). let's call the width w and the length L.

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Step-by-step explanation: Correct me if im wrong. Hope it helps. :)