Question

pls solve this simultaneous equation for me ..
x/2 + y/3 = 9
x/5 + y/4 = - 1​

Answer 1

Answer:

$\large{x = - 74 \quad \: y = - 39 \frac{3}{7} }$

Step-by-step explanation:

$\math{ \frac{x}{2} + \frac{y}{3} = 9 \quad \: 1} \\ \\ \math{ \frac{x}{5} + \frac{y}{4} = - 1 \quad \: 2} \\ \\ (2) \times 5 - (1) \times 2 \\ \\ = > (x + \frac{5}{4} y) - (x + \frac{2}{3} y) = ( - 5) - (18) \\ \\ = > \frac{7}{12} y = - 23 \\ \\ = > y = - \frac{276}{7} = - 39 \frac{3}{7} \\ \\ = > x = 2(9 - \frac{y}{3} ) \\ \\ = > x = 2(9 - 92) \\ \\ = > x = - 74$

Hope it helps

Answer 2

Step-by-step explanation:

answer is x = 310 / 7

y = -276/ 7