Question

simplify -2+ ( -1)

Answer 1

-3

Answer 2

do you see why that is?

Answer 3

no

Answer 4

if it was -2 - (-1) it would be -1. when the sign in the middle of the equation and the sign in the parenthesis are the same, you will add. when the signs are different you will subtract.

Answer 5

evaluate this expression , given that m=-3 and n=1 ......... 3( m+ n )

Answer 6

you just substitute the letters for the corresponding numbers.
3(-3+1). multiply 3 and -3; then multiply 3 and 1. you get -9+3. then you just add -9 and 3 which is -6.