How do you solve equation elimination?

-7x-8y=9

-4x+9y=-22

Well for me the answer would be 53,1

(-7x - 8y = 9) - 4

(-4 * + 9y = - 22) 7

28x - 32y = - 36

-28x + 63y = - 154 ... add the equations

together

0 + 31y = - 190

y = - 190/31

y = - 6.1

-7x - 8y = 9

-7x - 8 (-6.1) = 9

-7x + 48.8 = 9

-7x = 9 - 48.8

-7x = - 39.8

x = - 39.8/-7

x = 5.6

The solution = (5.6, - 6.1)