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3 years ago

PLEASE HELP. WILL GIVE BRAINLIEST AND WORTH 60 POINTS.

Mathematics

1 answer:

Agata [3.3K]3 years ago

8 0

Answer:

Q1. No solution
Q2. (5, 6)
Q3. Infinitely many solutions
Q4. No solution
Q5. (2, 3)

Step-by-step explanation:

Q1.

y = -1/3x - 1
x + 3y = -12

Solution

x + 3(-1/3x - 1) = -12
x - x - 3 = -12
-3 = -12

No solution

y = 2x - 4
y = x + 1

Solution

2x - 4 = x + 1
x = 5
y = 6

(5, 6)

y = -3x + 3
6x + 2y = 6

Solution

6x + 2(-3x + 3) = 6
6x - 6x + 6 = 6
6 = 6

Infinitely many solutions

- 5x + y = 1
- 10x + 2y = -2 ⇒ -5x + y = -1

Solution

1 = -1

No solution

y = 1/2x + 2
y = x + 1

Solution

1/2x + 2 = x + 1
1/2x = 1
x = 2
y = 3

(2, 3)

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