1) 7x + 2 = - 19
2) 3(×+ 4) = 21
3) 5× - 4 < 21
4) 3× - 9 > 5× -3
5) 3 (×- 3) = 8 - ×
6) 7× - 2 = 8 - ×
7) 2× - 6 > 0
8) 2 (× - 1) + 2 (3× - 1) < 0
9) 4 + 3× = 2 - 2×
10) 8 - 2× = 5 - 4×​