Question

the value of variable 2 (b+9)= 20,b=4

Answer 1

NO the value of the variable b is 1.


2(b+9) = 20

2b + 18 = 20

2b = 20-18 = 2

2b = 2

b= 1

Answer 2

2(b+9)=20
b+9=20/2
b+9=10
b=10-9
b=1