Answer:
To convert the equation y - 7 = 3(x - 4) to standard form Ax + By = C, we need to rearrange it so that it has the form Ax + By = C, where A, B, and C are constants.
y - 7 = 3(x - 4)
y - 7 = 3x - 12 (distribute the 3)
3x - y = 7 - 12 (move y to the left-hand side)
3x - y = -5
Now we have the equation in standard form, where:
A = 3
B = -1
C = -5
Therefore, the values of A, B, and C are 3, -1, and -5, respectively.