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

2)50 + 4 × х = 824х = 82-504х = 32 | ÷ 4х = 8ответ: 83)3 × (х+6) - 23 = 163х + 18 - 23 = 163х - 5 = 163х = 16 + 53х = 21 | ÷ 3х = 7ответ: 7