Answer:
M/(4+9x)
Step-by-step explanation:
Given equation is M = 4b + 9bx.
M = 4b + 9bx
Factorizing right hand side by b:
b* (4 + 9x)
Reformulating the equation accordingly:
M = b * (4+9x)
Dividing both the left hand side and right hand side of the equation by (4+9x):
M/(4+9x) = b
=> b = M/(4+9x)
Or, In other words the required value of b is M/(4+9x)
This value of b is a function of two given variables,namely M and x, or f(M,x)
