express the following as percentages:(1) 12 hours in in 3 days (2) 4 metres in in 2.5 kilometres (3) 3 months in 5/2 (4) 75 paise in in ₹ 3, express this questions step by steps .
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Answer:
2x+3=x+15
Step 1: Subtract x from both sides.
2x+3−x=x+15−x
x+3=15
Step 2: Subtract 3 from both sides.
x+3−3=15−3
x=12
Answer:
x=12
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