Question

2a+4=a+2 then a=?
be fasttt​

Answer 1

Answer:

a = -2

Step-by-step explanation:

Transpose a to the LHS and 4 to the RHS.

You'll get => 2a - a = -4 + 2

Now, subtract and add.

=> a = -2

Answer 2

$\large\sf\underline{Given\::}$

• $\sf\:2a+4=a+2$

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$\large\sf\underline{To\:find\::}$

• Value of a = ?

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$\large\sf\underline{Solution\::}$

$\sf\:2a+4=a+2$

• Transposing a to the other side

$\sf\implies\:2a-a+4=2$

$\sf\implies\:a+4=2$

• Transposing 4 to the other side

$\sf\implies\:a=2-4$

$\large{\mathfrak\red{\implies\:a\:=\:-2}}$

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$\large\sf\underline{Verifying\::}$

$\sf\:2a+4=a+2$

• Let's substitute the value of a as ( - 2 )

$\sf\implies\:2 (-2) +4=(-2)+2$

$\sf\implies\:2 \times (-2) +4=-2+2$

$\sf\implies\:-4 +4=-2+2$

$\sf\implies\:-\cancel{4} +\cancel{4}=-\cancel{2}+\cancel{2}$

$\sf\implies\:0=0$

$\small\fbox\blue{Hence\:Verified}$

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!! Hope it helps !!