1)5x + 48 4 = 20 + 10 + 2 × 10
5x + 12 = 2 + 20
5x + 12 = 22
5x = 22 :12
5x = 10 | :5
х = 2
скачай приложение Photomath, оно тебе с уровнениями и примерами
1) x = 41,6
2) x = 2 1/9
Объяснение:
1) 5x + 48 : 4 = 20 * 10 + 2 * 10
5x + 12 = 10 * 22
5x + 12 = 220
5x = 220 - 12
5x = 208
x = 208/5
x = 41 3/5
x = 41,6
2) 4 1/2 * x + 3 3/10 * 5 = 7 6/13 + 18 7/13
9/2x + 33/10 * 5 = ( 7 + 18 ) + ( 6/13 + 7/13 )
9/2x + 33/2 = 26 | * 2
9x + 33 = 52
9x = 19
x = 19/9
x = 2 1/9
