Answer:
[tex]10x+12[/tex]
Step-by-step explanation:
we have
[tex]3(x+4)+7x[/tex]
step 1
Apply distributive property
[tex]3(x+4)+7x=3(x)+3(4)+7x[/tex]
[tex]3(x)+3(4)+7x=3x+12+7x[/tex]
step 2
Combine like term
[tex]3x+12+7x=(3x+7x)+12[/tex]
[tex](3x+7x)+12=10x+12[/tex]
