1) 875:25 = а + 20(2)875/25 = а + 4035 = а + 40а = -5
2) а х 49 = 927 + 93549а = 1862а = 1862/49а = 38
3) х - 3893 = 1492 x 2х - 3893 = 2984x = 2984 + 3893x = 6877
4) 1344 : x = 543 - 4871344/x = 56x = 1344/56x = 24
So, the solutions are:1) а = -52) а = 383) x = 68774) x = 24
1) 875:25 = а + 20(2)
875/25 = а + 40
35 = а + 40
а = -5
2) а х 49 = 927 + 935
49а = 1862
а = 1862/49
а = 38
3) х - 3893 = 1492 x 2
х - 3893 = 2984
x = 2984 + 3893
x = 6877
4) 1344 : x = 543 - 487
1344/x = 56
x = 1344/56
x = 24
So, the solutions are:
1) а = -5
2) а = 38
3) x = 6877
4) x = 24