Question

Write the equation y = x – 4 in standard form (Ax + By = C ).
A:-2x + y = -2
B: y = -4
C:x + y = 4
D:-x + y = -4

Answer 1

subtracted by x to both sides, becomes
y = x – 4
y - x = x - 4 - x
y - x = -4

Answer 2

that's similar with
-x + y = -4

Answer 3

thank you!!

Answer 4

welcome :)