# Solve the Following Equations. 3 (N − 5) = 21 - Mathematics

Sum

Solve the following equations.

3 (n − 5) = 21

#### Solution

3 (n − 5) = 21

Dividing both sides by 3,

n - 5 = 21/3 = 7

n = 7 + 5 = 12 (Transposing −5 to R.H.S.)

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#### APPEARS IN

NCERT Class 7 Maths
Chapter 4 Simple Equations
Exercise 4.3 | Q 2.2 | Page 89