Question

using substitution method solve 3x-5y=1 and 5x+2y =19​

Answer 1

Answer:

pls reply if this is correct or not

Step-by-step explanation:

x= 285/9

y=57/31

Answer 2

Answer:

(x, y) = ( $\frac{97}{31}$ , $\frac{52}{31}$ )

Step-by-step explanation:

3x - 5y = 1 .... (1)

5x + 2y = 19 ⇒ x = - 0.4y + 3.8 .... (2)

(2) → (1)

3(-0.4y + 3.8) - 5y = 1

- 1.2y + 11.4 - 5y = 1

6.2y = 10.4 ⇒ y = $\frac{52}{31}$ ≈ 1.677

x = - $\frac{2}{5}$ × $\frac{52}{31}$ + $\frac{19}{5}$ = $\frac{97}{31}$ ≈ 3.129

(x, y) = ( $\frac{97}{31}$ , $\frac{52}{31}$ ) ≈ (3.129, 1.677)