If $x^3=a+1$ and $x+(b/x)=a$ Then $x$ equals?? Please help in solving these equations. I can't get it how to solve $1$ variable by two equations
You have actually three unknowns and only two equation so the value of $x$ is not unique. One has for example, the integer solutions (which is not necessary) $$(x,a,b)=(2,7,35),(1,0,-1),(3,26,69)$$ and infinitely many more (take a value of $a$ such that $a+1$ be a cube so you have a value for $x$ and a value for $b$).