Processing Math: Done
Solution 1.1:2b
From Förberedande kurs i matematik 1
When calculating, the innermost part of the expression should always be calculated first.
3−(((7−4)+6)−5)=3−((3+6)−5) .
In the resulting expression we again pick out and calculate the innermost part
=3−((3+6)−5)
=3−(9−5) .
Now there is just one bracket to calculate
=3−(9−5)
=3−4
and now there is only an expression without brackets left to calculate
=−1 .
