Sagot :
1. x = 2
2. x = 19
3. x = 16
Checking:
1.
4 x 4 = 16
2 x 8 = 16
2.
2 x 30 = 60
5 x 19 - 7
5 x 12 = 60
3.
4 x 2(16) + 13
4 x 32 +13
4 x 45 = 180
9 x 16 + 4
9 x 20 = 180
1. x = 2
2. x = 19
3. x = 16
Checking:
1.
4 x 4 = 16
2 x 8 = 16
2.
2 x 30 = 60
5 x 19 - 7
5 x 12 = 60
3.
4 x 2(16) + 13
4 x 32 +13
4 x 45 = 180
9 x 16 + 4
9 x 20 = 180