Пошаговое объяснение:
1) 2-2+31x = 0,25
0+31x = 0,25
31x = 0,25
x = 0,25:31
x = 1/124
3) 2,25x = 5,125 - 41x
2,25+41x = 5,125
43,25x = 5,125
x = 5,125:43,25
x = 41/346
2) 3-1x+32x = 92 + x
3+31x = 92+x
31x-x = 92-3
30x = 89
x = 89:30
x = 2 29/30
4) 4-x-2x = 8+x
4-3x = 8+x
-3x-x = 8 -4
-4x = 4
x = 4: (-4)
x = -1
Пошаговое объяснение:
1) 2-2+31x = 0,25
0+31x = 0,25
31x = 0,25
x = 0,25:31
x = 1/124
3) 2,25x = 5,125 - 41x
2,25+41x = 5,125
43,25x = 5,125
x = 5,125:43,25
x = 41/346
2) 3-1x+32x = 92 + x
3+31x = 92+x
31x-x = 92-3
30x = 89
x = 89:30
x = 2 29/30
4) 4-x-2x = 8+x
4-3x = 8+x
-3x-x = 8 -4
-4x = 4
x = 4: (-4)
x = -1