Answer :
Answer:
Your final answer is 15x+12
Step-by-step explanation:
Remove parathenes ( ) group like terms add similar elements add the numbers 5 + 7 = 12
You just have to remove the parenthesis
(12x+5) + (3x+7)
12x+5+3x+7
12x+3x= 15x
5+7=12
~15x+12~
(12x+5) + (3x+7)
12x+5+3x+7
12x+3x= 15x
5+7=12
~15x+12~