Question

Form linear equations for the following
statements and then solve.
a) 7 more than 9 times a number is 43
What is the number?


answer with clear explanation ​

Answer 1

7 more than 9 times a number is 43.

Let the number be x.

☆ Equation ☆

9x+7 = 43

☆ Solution ☆

9x+7 = 43

9x = 43-7

9x = 36

$x = \frac{36}{9}$

x = 4

◇ Therefore the number is 4.

☆ Check ☆

By putting the value of x as 4 in the equation;

9×4+7 = 43

36+7 = 43

43 = 43

LHS = RHS

Hence Verified