tolong jawab sekaligus keterangan pliss dikumpul hari in!

1. 2x = 8 - 4 = 4:2 = 2

2. -4x + 3 = 20 - 8 = 12 - 3 = 9 : -4 = -2¹/4

3. -2x + 3 = 10 = 10 - 3 = 7 : -2 = -3¹/2

4. 7x - 8 = 62 = 62 + 8 = 70 : 7 = 10

5. 12x - 40 = 104 = 104 + 40 = 144 : 12 = 12