/ means divide
x + 4 = 12
8
x-5=10
15
x + 9= 12
3
x - 7 = 13
20
x + 20 =40
20
3 - x = 18
-15
4x – 7 = 5
3
5x -8 =12
4
15x + 6 = 36
2
x/2=12
24
𝑛/8+ 7 = 12
40
3x=15
5
3(x + 2) = 18
4
5b + 2 +13 =90
15
4(x-4) =36
13
2 (x + 3) +8= 3 ( x - 1) + 15
2