Find the missing coordinates to complete the following ordered-pair solutions to the given linear equation.

y+7x=7

(a) (-2,)

(b) (3,)

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)