Divide both sides by 1.2
simplify 3/1.2 to 2.5
subtract 5 from both sides
simplify 2.5 - 5 to -2.5
Answer: w = -2.5.
Step-by-step explanation:

Answer: x = -3, -1/3, 1/2, 3
Step-by-step explanation:
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8*10 squared as a decimal would be 2.8