Ex 4.3, 4 - Chapter 4 Class 7 Simple Equations
Last updated at April 16, 2024 by Teachoo
Making equations from statements and solving
Chapter 4 Class 7 Simple Equations
Concept wise
- Definition
- Writing statements to equation
- Writing equation to statements
- Making equations from statements
- Solving Equations
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Making equations from statements and solving
Transcript
Ex 4.3, 4 Solve the following riddle: I am a number, Tell my identity! Take me seven times over And add a fifty! To reach a triple century You still need fortyLet the number be x Given that, Adding seven times over x and 50 = triple century − 40 7x + 50 = 300 − 40 7x + 50 = 260 7x = 260 − 50 7x = 210 x = 210/7 x = 30 So, number is 30
