Respuesta :
Answer:
Step-by-step explanation:
4b - 5 = 19
4b = 24
b = 6
4b - 5 = -19
4b = -14
b = -14/4 = -7/2
Answer: x = 6, x = -7/2, or -3.5
Step-by-step explanation:
First, split the problem in one positive and one negative
|4b-5|=19
4b - 5 = 19
-(4b-5)=19
Second, solve
4b - 5 = 19
-(4b-5)=19
Finally, simplify
4b-5=19
4b - 5 (+5) = 19 (+5)
4b = 24
4b/4 = 24/4
b = 6
For b = -7/2:
-(4x-5)=19
-4x + 5 = 19
-4x + 5 (-5) = 19 (-5)
-4x = 14
-4x/-4 = 14/-4
x = -7/2
For b = -3.5
-7/2 just simplifies into 3.5
