Question

What should be the value of a if
(a) the value of 2a + b + 1 equals to 25, when b = 0?

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Answer 1

Answer:

Given:-

What should be the value of "a" if : The value of 2a + b + 1 equals to 25, when b = 0?

To Find:-

The value of "a".

Note:-

●》Here, we will first find the value of "a" by adding the common terms and then by transposing.

●》Transposing is a process in which we change the side of known value to other side for finding unknown value and in this process signs are changed. For example - Positive becomes Negative, Multiple becomes Divisional.

Solution:-

$\huge\red{2a + b + 1 = 25}$

$\huge\red{ \ \ \ \ The \ \ value \ \ of \ \ a = ?}$

☆ According to note first point~

▪︎$2a + b + 1 = 25$

☆ As we know b = 0~

▪︎$2a + 0 + 1 = 25$

▪︎$2a + 1 = 25$

☆ According to note second point ( Transposing )~

▪︎$2a = 25 - 1$

▪︎$2 × a = 24$

▪︎$a = \dfrac{24}{2}$

☆ After dividing~

▪︎$a = 12$

$\huge\pink{The \ \ value \ \ of \ \ a = 12}$

Checking:-

♤ Let's check that "a" = 12 or not by equation means~

• $2a + b + 1 = 25 \implies ?$

♤ Putting "a" and "b" value~

• $2 × 12 + 0 + 1 = 25 \implies ?$

• $24 + 1 = 25 \implies ?$

• $25 = 25 \implies ✔$

$\huge\green{Hence, Proved : a = 12}$

Answer:-

Hence, The value of "a" = 12.

:)