As you can see in the photo and the title this is the 4th level of the problem. Up until now, I am able to take user input in string format:
c1x1+c2x2+...=b1 and store coefficients and b1 in an array. I am doing this by reading the string one by one.
Getting to the innermost parentheses is also not a problem but, after taking the value and evaluating what's inside the parentheses, I don't know how to put it in the original one and deal with situations like distributive property =>
(…+(…)3.265x2). Unknowns are identified as
x5 and I'm using float for the coefficients