0,6·(x+140)+1,5·X=462

Question

0,6·(x+140)+1,5·X=462

Answer 1

0,6(х + 140) + 1,5 * х = 462;
0,6х + 84 + 1,5x = 462;
0,6x + 1,5x = 462 - 84;
2,1x = 378
x = 378 : 2,1
x = 180
Ответ: 180.