Answer:
The value of the expression
is -0.75.
Step-by-step explanation:
Given: the expression

BODMAS acronym is;
B - Bracket
O - Orders
D -Division
M - Multiplication
A - Addition
S - Subtraction
Using BODMAS rule in the given expression, first solve the bracket terms;

Then we have;

next, multiply the terms 0.9 and
we get
then, Add the above numbers;
= -0.75
Therefore, the value of given expression is, -0.75