Question

3x – 4y = -5
y = 4.3 - 2
Is (1, 2) a solution of the system?
Choose 1 answer:

Answer 1

No. The correct answer is (1.4, 2.3)

Explanation:

y= 4.3 - 2

y= 2.3

3x - 4y = -5

3x - 4(2.3) = -5

3x - 9.2 = -5

3x = -5 + 9.2

3x = 4.2

x = 4.2 ÷ 3

x = 1.4

(1.4 , 2.3)