we have
[tex]\frac{-2(7-15)}{4}[/tex]
Step 1
Solve the parenthesis first
[tex]\frac{-2(7-15)}{4}=\frac{-2(-8)}{4}[/tex]
Step 2
Solve the multiplication
[tex]\frac{-2(-8)}{4}=\frac{+16}{4}[/tex]
Step 3
Solve the division
[tex]\frac{+16}{4}=4[/tex]
therefore
the answer is
[tex]4[/tex]
