Answer:
Step-by-step explanation:
Lets start with 13
-2(13 + 3) = -4(13) + 20
-32 = -52 + 20
-32 = -32
x = 1 basically
now 19
-2(19 + 3) = -4(19) +20
-44 = -76 + 20
-44 = -56
so divide those
-2(31 + 3) = -4(31) + 20
-68 = -124 + 20
-68 = -104
divide them
-2(37 + 3) = -4(37) + 20
-80 = -148 + 20
-80 = -128