I think it is 32, bc the value of x is 20 so your problem would look like this; 2 ( (20) - 4 )
If i mean .913 then .91 but if u wrote it correctly then 900
Answer:
See Below
Step-by-step explanation:
First, isolate x. To do that add 3.5 to each side
x - 3.5 = -3.1
+3.5 +3.5
x= 0.4