3b-9-8b=11
3b-9-8b=11
-5b = 11 + 9
b = 20/-5
b = ?
To solve the equation 3b - 9 - 8b = 11, you need to isolate the variable "b" on one side of the equation.
Start by combining the like terms. In this case, you have "3b" and "-8b" which can be combined to give "-5b". The equation becomes:
-5b - 9 = 11
Next, isolate the variable term by solving for "-5b". Add 9 to both sides of the equation:
-5b - 9 + 9 = 11 + 9
Simplifying the equation gives:
-5b = 20
To solve for "b", divide both sides of the equation by -5:
-5b / -5 = 20 / -5
This yields:
b = -4
So the solution to the equation 3b - 9 - 8b = 11 is b = -4.