Question

Can you help me with these?

1: X + 5=12

2: 7x = 21

3: b - 2/3 = 5/6

4: 1/5m = 20

5: 45 = 3(x + 1)

6: 22.5 = 1.5x

Answer 1

1: x + 5=12 -> x=7

2: 7x = 21 -> x=3

3: b - 2/3 = 5/6 -> x=3/2

4: 1/5m = 20 -> 100

5: 45 = 3(x + 1) -> x = 14

6: 22.5 = 1.5x -> x = 15

Explanation: