Question

Q4 Solve for x and y *

2x + 7y = -5
5x - 7y = 12

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Answer 1

Answer:

3x – 2 = 7 ⇒3x = 7 + 2 = 9 ⇒3x = 9 ⇒x = 3. Thus, (x, y) = (3, 1) (3) 2x – 3y = 9 .....

Step-by-step explanation:

3x – 2 = 7 ⇒3x = 7 + 2 =x = 9 ⇒x = 3. Thus, (x, y) = (3, 1) (3) 2x – 3y = 9 .

Answer 2

Answer:

-2 + 7 = -5

5 + 7 = 12