Question

Solve the equation a + 5 = 20 and state which axiom do you use here.​

Answer 1

u - 5 = 15

=> u = 15 + 5

=> u = 20

The Axiom used above is Transposition according to which when a number is shifted to the other side sign changes.

hope it helps you ☺️

Answer 2

$\huge\sf{\underline{\underline{\red{Solution}}}}$

$\red{➸}\sf \: {a+5=20}$

$\red{➸}\sf{a=20-5=15}$

➤ The axiom is used above is Transposition according to which when a number is shifted to other side sign changes.

Tнαηкѕ!!