tentukan nilai A dan B yg memenuhi persamaan x+2 = ( A+2B ) x + 3b -5A

x + 2 = (A+2B)x + 3B - 5A
x+2 = Ax + 2Bx + 3B - 5A
Ax + 2Bx - 5A + 3B = x + 2

A + 2B = 1 (X -5)
-5A + 3B = 2

-5A -10B = -5
-5A + 3B = 2
-13 B= -7
B = 7/13

A + 2B = 1
A + 14/13 = 1
A = -1/13