Question

234+456-456-234=?
2(45-45)-45-65+65=?
a+b=2
a+b=1

Answer 1

Answer:

234+456-456-234=0, 2(45-45) -45-65+65=-45

Answer 2

Step-by-step explanation:

1. 234+456-456-234=0

2. 2(45-45)-45-65+65=-45

3. a+b=1+1=2

4.a+b=0+1=1