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Transcript

Example 2 Solve 5𝑥+ 7/2=3/2 𝑥−145𝑥+ 7/2=3/2 𝑥−14 5𝑥=3/2 𝑥−14−7/2 5𝒙−𝟑/𝟐 𝒙=−𝟏𝟒−𝟕/𝟐 Multiplying by 2 both sides 2(5𝑥−3/2 𝑥)=2(−14−7/2) 10𝒙−𝟑𝒙=−𝟐𝟖−𝟕 7𝑥=−35 𝑥=−35/7 𝒙=−𝟓 L.H.S 5x + 7/2 =5(−5)+7/2=−25+7/2 = (−50 + 7)/2=(−𝟒𝟑)/𝟐 R.H.S 3𝑥/2−14" " " =" 3(−5)/2−14 = (−15 − 28)/2=(−𝟒𝟑)/𝟐 Check: ∴ LHS = RHS Hence Verified.

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Davneet Singh

Davneet Singh has done his B.Tech from Indian Institute of Technology, Kanpur. He has been teaching from the past 14 years. He provides courses for Maths, Science, Social Science, Physics, Chemistry, Computer Science at Teachoo.