Question

I-Pathways

Coordinate Grids
7. What is the missing y value if (7,?) is a solution of: 3y + 2x + y = 30?

Answer 1

y = 4

Explanation:

Filling in the given value of x (7), the equation becomes ...

3y +2(7) +y = 30

4y = 16 . . . . . . . . . . subtract 14 and simplify

y = 4 . . . . . . . . . divide by 4

The missing value of y is 4.