Question 256560
ALWAYS WORK FROM THE INSIDE BRACKETS OUT.
WORK ON THE -(3-b)
5a – {6b – 4[2a – (3 – b)]}
5a-(6b-4[2a-3+b])
NOW WORK ON THE -4(2a-3+b)
5a-(6b-8a-12-b)
NOW WORK ON THE -(6b-8a-12-b)
5a-6b+8a+12+b
NOW COMBINE THE a & b TERMS.
13a-5b+12 ans.