Answer:
-13
Step-by-step explanation:
As you can see C = 5 X = -4
so what you can do is put the numbers in the equation
-(5) + 2(-4) = -13
brackets represents times
and then use your calculator or mental sum
c = 5
x = -4
-c + 2x
-5 + 2(-4)
-5 - 8