Question

solve 5 x + 2 y = -3 and X + 5 y = 4​

Answer 1

Step-by-step explanation:

5x+2y=-3_________ eqn (1)

x+5y=4___________eqn (2)

multiply by 5 in eqn (2)

5x+5y=20_______(3)

5x+2y=-3

-__-___+___

0. 3y=23

y=23/3

y=7.6

substitute this value in eqn (1)

5x+2y=-3

5x+2×7.6=-3

5x=-3(-14.6)

x=17.6/5

x=-3.52