Question

Решить уравнение : 20x+30*(x+5/12)=75

Answer 1

20х + 30 * (х+5/12)= 75; 20х + 30х + 30*5/12 = 75; 50х + 12.5 = 75; 50х = 75 - 12.5; 50х = 62.5; х = 62.5/50; х = 1.25