Solution:
Given expression is:
-7(8 - 3) + x
We have to use the distributive property
By distributive property,
a(b + c) = ab + ac
Therefore,
[tex]-7(8 - 3) + x = (-7 \times 8) + (-7 \times -3) + x\\\\-7(8 - 3) + x = -56 + 21 + x\\\\Combine\ constants\\\\-7(8 - 3) + x = -35+x[/tex]
Thus, distributive property is used to simplify the expression