@vaxab23111 Тоже решил поучавствовать на разминки мозга, на 100% не претендует
function getCooficient(exp) {
var matched = exp.match(/(\d+)[\s*+-/]*[A-z]/)
if (matched) {
return parseFloat(matched.pop())
}
return 1
}
function evalSide(exp) {
var cleanExp = exp.replace(/\d*[\s*+-/]*[A-z]/, '')
if (!cleanExp) return 0
return eval(cleanExp)
}
function invertResult(num) {
return num > 0? -num : num
}
function solveEquation(equation) {
var parts = equation.split("=")
var leftSide = parts[0].trim()
var rightSide = parts[1].trim()
var coefficient = 1
var leftSideResult = evalSide(leftSide)
var rightSideResult = evalSide(rightSide)
if (/[A-z]/.test(leftSide)) {
var coefficient = getCooficient(leftSide)
leftSideResult = invertResult(leftSideResult)
} else {
var coefficient = getCooficient(rightSide)
rightSideResult = invertResult(rightSideResult)
}
return (leftSideResult + rightSideResult) / coefficient
}
log(solveEquation("6 * X=14")); // выводит 2.3333333333333335
log(solveEquation("X+2=80")); // выводит 78
log(solveEquation("12+15=X")); // выводит 27
log(solveEquation("6 *X + 2=14")); // выводит 2
log(solveEquation("X+2 * 2=80")); // выводит 76
log(solveEquation("12+15/5=X")); // выводит 15
[[BAS_VARIABLE]] = solveEquation("6 * X=14")
