0= 0
both sides are equal
Step-by-step explanation:
[tex]4(x + 1) = 4x + 4[/tex]
Expand
[tex]4(x + 1) = 4x + 4 \\ \\ 4x + 4 = 4x + 4 \\ 4x-4x=4-4 \\ 0=0[/tex]