The standard form of the equation of line y + 4 = 2 · (x - 7) is equal to - 2 · x + y = 18.
How to find the standard form of the equation of line
In this problem we receive the equation of a line, whose form is shown in the image attached aside and whose standard form must be found, that is, a form:
A · x + B · y + C = 0
Where A, B, C are real coefficients.
The standard form is found by means of algebra properties:
y + 4 = 2 · (x - 7)
y + 4 = 2 · x - 14
- 2 · x + y = 18