Answer:
Answer:-4e-9
[tex]3e - 19 - 7e + 10[/tex]
Start by combining like terms. I put like terms in parentheses so you can see them, but they are not needed.
[tex] = (3e - 7e) + ( - 19 + 10)[/tex]
[tex] = - 4e - 9[/tex]
That's it.
