Question

(2,?) is on the line 6x – 7y = -9. Find the other half of the coordinate

Answer 1

(6.2)-7y=-9
12-7y=-9
-7y=-9-12
-7y=-21
y=-21/-7
y=3























6.2-7y=

Answer 2

(x,y) form
therefor
x=2 and y=? is one solution that is true
subsitue 2 for x and ? for y
6(2)-7(?)=-9
multiply
12-7?=-9
subtract 12 from both sides
-7?=-21
divide both sides by -7
?=3

(2,3)