Change the Subject of a Formula & Find the Value | Class 8 Ex 2.17 Q6, 7, 8 & 9

In this video, I solve Exercise 2.17, Questions 6, 7, 8 and 9 of Grade 8 Math. In each question we make a variable the subject of a formula, then substitute the given values to find its value. Topics covered: Q6: P = a + b + c, find b Q7: A = h/2 (a + b), find h Q8: y = (3x − 9)/2, find x Q9: y = 100 − 100/(1 + x), find y Making a variable the subject Substituting values into a formula This completes Exercise 2.17! 🎉 Watch the other videos of this exercise: Q1: [link] Q2, 3 & 4: [link] Q5: [link] Like, subscribe, and comment which exercise you want next! #Class8Math #SubjectOfFormula #MathLessons