Question

5x-3y=9
2x+3y=19

use either substitution or elimination method

Answer 1

Step-by-step explanation:

$\\ \huge hey... \\ 5x - 3y = 9 \\ x = \frac{9 - 3y}{5} \\ \\ 2x + 3y = 19 \\ 2( \frac{9 - 3y}{5} ) + 3y = 19 \\ 2(9 - 3y) + 15y = 95 \\ 18 - 6y + 15y = 95 \\ 9y = 77 \\ y = \frac{77}{9}$

$2x + 3y = 19 \\ 2x + 3( \frac{77}{9} ) = 19 \\ 18x + 3(77) = 171 \\ 18x = - 60 \\ x = - 3.33$

Answer 2

Answer:

5x - 3y = 9

5x = 3y + 9

X = 3y + 9/5

in other equation put the value of x

2 ×( 3y + 9/5 ) + 3y = 19

6y + 18/5 + 3y = 19

9y = 19 - 18/5

9y = 95 - 18/5

9y = 77/5

y = 77/5 × 9

y = 138.6