CBSE Class 8 Maths – Linear Equation Examples Ques 1: Solve:4x+9=10 Solution: 4x+9=10 Transpose 9 from L.H.S to R.H.S 4x=10-9 ⇒4x=1 ⇒x=1/4 Ques 2: The perimeter of a rectangular swimming pool is 160 m. Its length is 5 m more than twice its breadth. Find the dimensions of the pool. Solution: Let the breadth of the swimming pool be m As the length of the swimming pool is 5 m more than twice its breadth, Length of the swimming pool 2x+5 Area of the swimming pool = 2(Length+ Breadth) =2(2x+5+x) =2(3x+5) =6x+10 Also, The perimeter of a rectangular swimming pool 160 m So, 6x+10=160 ⇒6x=160-10=150 ⇒6x=150 ⇒x=150/6=25 So, The breadth of the swimming pool=25 m Length of the swimming pool=2(25)+5=55 m Click to know more about Linear Equations for class 8 Maths Visit Takshila Learning, for Online Tuition Classes for Class 8 Maths and other subjects.
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