Solve Linear Equation

Linear Equation.js

function evaluate(x) {
	xp = x.split(";")
		console.log(xp)
		xp.forEach(function (item, index) {
			console.log(index)
			if (index != 0) {
				eval(item)
			}
			if (index == (xp.length - 1)) {
var ss = (("(" + xp[0]).replace(/(\+|-)/g, ")+(") + ")").replace(/([0-9]+)([a-z]{1})/g, "$1*$2")
console.log(ss)				
console.log(eval(ss));
			}

		})
		//Write code here
		return x
}evaluate("9a+8b+m-5n+z;a=2;b=0;m=-8;n=24;z=9")