Answer:
-50
Step-by-step explanation:
Note the equal sign. What you do to one side, you do to the other. Do the opposite of PEMDAS:
Parenthesis
Exponents (& roots)
Multiplication
Division
Addition
Subtraction
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-16.25 = 0.25x - 3.75
First, add 3.75 to both sides
-16.25 (+3.75) = 0.25x - 3.75 (+3.75)
-16.25 + 3.75 = 0.25x
-12.5 = 0.25x
Isolate the x. Divide 0.25 from both sides
(-12.5)/0.25 = (0.25x)/0.25
x = (-12.5)/0.25
x = -50
-50 is your answer for x.
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<em>~Senpai</em>