1) 7×(x+4)=22+17 2) 50+4×x=82 3) 3×(x+6)-23=16

Question

1) 7×(x+4)=22+17
2) 50+4×x=82
3) 3×(x+6)-23=16

Answer 1

2)50 + 4 × х = 82
4х = 82-50
4х = 32 | ÷ 4
х = 8
ответ: 8

3)3 × (х+6) - 23 = 16
3х + 18 - 23 = 16
3х - 5 = 16
3х = 16 + 5
3х = 21 | ÷ 3
х = 7
ответ: 7