Question

решите плиз! 4·3x+2 + 5·3x+1 − 6·3x = 5

Answer 1

4 * 3x + 2 + 5 * 3x + 1 - 6 * 3x = 5 ; 12x + 2 + 15x + 1 - 18x = 5 ; 27x - 18x = 5 - 3 ; 9x = 2 ; X = 2 : 9 ; X = 2/9