a - 3482 = 12 × 4 : 6
a - 3482 = 48 : 6
a - 3482 = 8
a = 8 + 3482
a = 3490
3 × a = 174 - 26 × 3
3 × a =174 - 78
3 × a = 96
a = 96 : 3
a = 32
1463 - 875 + 2788 = a + 970
588 + 2788 = a + 970
3376 = a + 970
a = 3376 - 970
a = 2406
a : 9 = 6342 - 5731 - 200 × 3
a : 9 = 6342 - 5731 - 600
a : 9 = 611 - 600
a : 9 = 11
a = 11 × 9
a = 99
