The value of the expression (–y) when x = 1.2 and y = –10.7 is 9.5
First, we need to know that algebraic expressions are expressions that are made up of terms, variables, coefficients, constants and factors.
Then, we have that the expression is given as;
x (–y)
For when x = 1.2 and y = –10.7
Substitute the values, we have;
-1.2( - (-10.7)
-1.2 + 10.7
add the values
9.5