let x = 29; let y = 19; console.log('Operator +='); console.log('Nilai x sebelum assignment: ' + x ); x += y; console.log('Nilai x setelah assignment: ' + x ); console.log('Operator -='); console.log('Nilai x sebelum assignment: ' + x ); x -= y; console.log('Nilai x setelah assignment: ' + x ); console.log('Operator *='); console.log('Nilai x sebelum assignment: ' + x ); x *= y; console.log('Nilai x setelah assignment: ' + x ); console.log('Operator /='); console.log('Nilai x sebelum assignment: ' + x ); x /= y; console.log('Nilai x setelah assignment: ' + x ); console.log('Operator %='); console.log('Nilai x sebelum assignment: ' + x ); x %= y; console.log('Nilai x setelah assignment: ' + x );