Question

verify a-(-b)=a+b for the following values of a and b a=21,b=18​

Answer 1

${\large{\bf{\red{\clubs{\underline{\underline{Given :}}}}}}}$

Verify that :

a - (-b) = a + b

Here values,

a = 21

b = 18

${\large{\bf{\orange{\clubs{\underline{\underline{Solution :}}}}}}}$

First,

${\bf{a - (-b)}}$

${\mapsto{\sf{21 - ( - 18)}}}$

${\mapsto{\sf{21 + 18}}}$

${\blue{\mapsto{\red{\boxed{\bf{39}}}}}}$

Than,

${\bf{a + b}}$

${\mapsto{\sf{21 + 18}}}$

${\blue{\mapsto{\red{\boxed{\bf{39}}}}}}$

${\pink{\bm{LHS = RHS}}}$

Hence,

${\pink{\bm{a - (-b) = a + b}}}$

${\large{\green{\underbrace{\overbrace{\bf{Hence,Verified}}}}}}$

￣￣￣￣￣￣￣￣￣￣￣￣

Answer 2

Step-by-step explanation:

Given:

Verify that :

a - (-b) = a + b

Here values,

a = 21

b = 18

{\large{\bf{\orange{\clubs{\underline{\underline{Solution :}}}}}}}♣

Solution:

First,

{\bf{a - (-b)}}a−(−b)

{\mapsto{\sf{21 - ( - 18)}}}↦21−(−18)

{\mapsto{\sf{21 + 18}}}↦21+18

{\blue{\mapsto{\red{\boxed{\bf{39}}}}}}↦

39

Than,

{\bf{a + b}}a+b

{\mapsto{\sf{21 + 18}}}↦21+18

{\blue{\mapsto{\red{\boxed{\bf{39}}}}}}↦

39

{\pink{\bm{LHS = RHS}}}LHS=RHS

Hence,

{\pink{\bm{a - (-b) = a + b}}}a−(−b)=a+b

{\large{\green{\underbrace{\overbrace{\bf{Hence,Verified}}}}}}

Hence,Verified