Math Brief

On Paper

1)A + B = C

2)A + 1 = 6

A = 5

3)2 + 3 = 5

4)2x – 1 = 11

2x = 11 – 1

2x = 10

X = 5

5)10 / 2 = 5

6) 2x + 7y = 16

x + 7y = 4

In my head

1. ) A + A = B
2. )1+1 = 2
3. )2x+1 = 1
   • x = 3
4. )4×4 = 16