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Question
Evaluate x?−0.5×10−6=9×109×5×10−9×(−2)×10−9(x−2)×10−2
Evaluate x?
−0.5×10−6=9×109×5×10−9×(−2)×10−9(x−2)×10−2Open in App
Solution
−0.5×10−6=9×109×5×10−9×(−2)×10−9(x−2)×10−2−5×10−1×10−6=9×109×5×10−9×(−2)×10−9(x−2)×10−2
−5×10−7=−90×10(9−9−9+2)(x−2)−5×10−7=−90×10−7(x−2)
x−2=905=18⟹x=20
−5×10−1×10−6=9×109×5×10−9×(−2)×10−9(x−2)×10−2
−5×10−7=−90×10(9−9−9+2)(x−2)
−5×10−7=−90×10−7(x−2)
x−2=905=18
⟹x=20
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