Question

Решить уравнение (9*10+49*10)+(5*x+40)=100*16+100*25

Answer 1

( 90 + 490) + 5x + 40 = 1600 + 2500
580 + 5x + 40 = 4100
5x = 4100 - 620
5x = 3480
x = 3480 / 5
x = 696
Ответ: x = 696.

Answer 2

(9*10 + 49 * 10 ) + (5х+40)=100*16  + 100*25

(9+49)*10+5х+40 = 100*(16+25)

58*10 + 5х+40 = 4100

580+ 40 + 5х = 4100

620 + 5х = 4100

5х = 4100 - 620

5х= 3480

х= 3480 :5

х= 696