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2 years ago

I will give you brainliest!!!!! Use the elimination method to solve the system of equations 3x-y=8 3x+3y=12

Mathematics

2 answers:

azamat2 years ago

6 0

Answer:

x=3

y=1

(3,1)

Step-by-step explanation:

Alik [6]2 years ago

4 0

Answer: c. (3, 1)

Step-by-step explanation:

(3x - y = 8) + (3x + 3y = 12) = 6x + 2y = 20

Divide by 2

3x + y = 10

Plug in 3 for x

3(3) + y = 10

9 + y = 10

10 - 9 = 1

y = 1

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3 years ago

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2 years ago

A student is trying to solve the system of two equations given below: Equation P: a + b = 6 Equation Q: 4a + 2b = 19 Which of th

Marrrta [24]

Answer:

$-4(a + b = 6)$

Step-by-step explanation:

Given

$a + b = 6$

$4a + 2b = 19$

Required

Eliminate a

Multiply the first equation by -4

$-4(a + b = 6)$

Add to the second equation

$-4(a + b = 6) + (4a + 2b = 19)$

Solve brackets

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Open bracket

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3 years ago