How do you get 10 for the question 7-3(4-5)?

Answer 1

7 - 3(4 - 5)

Remember , DO INSIDE the Brackets FIRST.

Hence

7 - 3 (-1) =>

7 - - 3 (Remember a 'double' negative becomes plus(+).

7 + 3

=10

Answer 2

Parentheses go first. 7 - 3(-1)

Multiplication is next. 7 - (-3)

That equals 10.