If x = - 2 is the equation - ax + B = - 1-2x, then the value of the algebraic expression 4A + 2B + 1 is

If x = - 2 is the equation - ax + B = - 1-2x, then the value of the algebraic expression 4A + 2B + 1 is

X = - 2 is the root of the equation - ax + B = - 1-2x
2a+b=-1+4=3
4a+2b+1=2(2a+b)+1=6+1=7