Presumably this is an equation in the form of:
b+2b-11 = 88
3b = 88+11
3b = 99
b = 33
However, if this was b exponent 2 (squared) or b^2 for the first b, then it is
a quadratic expression.
b^2 + 2b - 11 = 88
b^2 + 2b - 99 = 0
(b+11)(b-9) = 0
B = -11 or 9
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