If half is -1/4 than the value of x is 2*(-1/4)=-1/2
Complete Question
Yana though of a number she multiplied it by 8 subtracted 4 divided the result by 2, and got 30. What number did Yana think of
Answer:

Step-by-step explanation:
From the question we are told that:
Thought of Number x
Multiplied it by 8

Subtracted 4

Divided the result by 2

Generally the equation for x is mathematically given by




Answer: x = -1, -13
Step-by-step explanation:
Answer:
It increased by 4 degrees. It from -4 up to 0.
Step-by-step explanation: