Mathematica Introduction

1+1

This is another text cell

1+1
1+2
2+3

This is a text cell, and so I can type like I normally would type here....

1+2*3-4/12

N[20/3]

N[20/3,20]

(5-6)^34+45-6*3

x=2

3*x+5=2

x

Clear[x]

3*x+5==2

Solve[3*x+5==2,x]

(3*x+5==2)/.{x->-1}

2==2