17 x (5+a) = 17 x b + 17 x 13

A = ?

B = ?

a=-85/4

b=53/4

Step-by-step explanation:

17x (5+a) = 17xb+221. (1)

85+17xa=17xb+221

85 + (17xa) - (17xb) - 221=0

17xa-17xb=-136

17x (a-b) = -136

a-b=-8

a=-8+b. (2)

Replace a=-8+b to (1):

17x5x (-8+b) = 17xb+221

85x (-8+b) = 17xb+221

-680+85xb=17xb+221

-680+85xb-17xb-221=0

-68xb-901=0

-68xb=901

b=-53/4

Replace b=-53/4 to (2):

a = - 8 + (-53/4) = - 85/4