Hi there! The solutions are (-2, 21) and (3, 14)
a. The x-coordinate is given, x = - 2
Filling in this value gives us the following:
y + 7 * - 2 = 7
y - 14 = 7
Now add 14 to both sides
y = 21
Hence, (-2, 21)
b. The x-coordinate is given, x = 3
Filling in this value gives us the following:
y + 7 * 3 = 7
y + 21 = 7
Now subtract 21 from both sides
y = -14
Hence, (3, 14)
