Question

n+n=30 is the equation and n = 10 . find value of m

Answer 1

Hey mate ^_^

______________________________

$m + n = 30 \\ \\ n = 10 \\ \\ m + 10 = 30 \\ \\ m = 30 - 10 \\ \\ m = 20$

______________________________^_^

Answer 2

Equation

n + m = 30 (Take n = 10)

By transpose method

10 + m = 30

m = 30 - 10 (Transposing 10 to L.H.S then subtracting from 30)

m = 20

Inverse method

m + 10 - 10 = 30 - 10 (Subtracting 10 from both the sides)

m = 20

Hope it helps :)