17×-8=40+× 5+4×=×+23 6×+7=×+27

Question

17×-8=40+×



5+4×=×+23




6×+7=×+27

Answer 1

17х-8=40+х
17х-х=40+8
16х=48
х=3
5+4х=х+23
4х-х=23-5
3х=9
х=3
6х+7=х+27
6х-х=27-7
5х=20
Х=4