Question

6x+5y=61 -5x+5y=-5 A. (8, 3) B. (6, 5) C. (6, 3) D. (8, 5)

Answer 1

This is a system of equations.
6x + 5y = 61
-5x + 5y = -5
by property of the equation we can multiply both parts by any nonzero number.
so we multiply second one by -1
6x + 5y = 61
5x - 5y = 5
then by the rule of summ we sum up our equations and eliminate y by doing this.
11x = 66
from here x = 66/11 = 6
5 * 6 - 5y = 5
-5y = 5 - 30 = -25
y = -25 / -5 = 5
check:
6 * 6 + 5 * 5 = 61
36 + 25 = 61
61 = 61
Therefore variant B (6 5))

Answer 2

it is (6,5)