Rewrite each equation as a linear equation of the form y = mx + b.

(A) 2x + y = 4
y =
-2
x +
4


(B) y – x– 3 = 0
y =
x +
3


(C) –4x + 2y = 10
y =
2
x +
5


(D) –y = 3x – 12
y =
-3
x +
12
What's the answer of the second question? It's hard.