Question

By substitution method .
2x + 3y =12
X-1 = 1​

Answer 1

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x - 1 = 1

=> x = 2

Now, 2x + 3y = 12

=> 2(2) + 3y = 12

=> 4 + 3y = 12

=> 3y = 8

=> y = 8/3

Thus, x = 2 and y = 8/3

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Answer 2

Answer:-

➣

$\bf{x = 2}$

$\bf{y = \dfrac{8}{3}}$

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• Given:-

$2x + 3y = 12 \: \: \: \: \longrightarrow{\bf{eqn.1}}$

$x - 1 = 1\: \: \: \: \longrightarrow{\bf{eqn.2}}$

• To Find:-

Value of:

$\bf{x=?}$

$\bf{y=?}$

• Method:-

$Substitution \: Method$

• Solution:-

$x - 1 = 1$

$\implies{x = 1 + 1}$

$\implies\bf{x = 2}$

Putting this value of $\bf{x}$ in $\bf{eqn.1}$

We have,

$\implies{2(2) + 3y = 12}$

$\implies{4 + 3y = 12}$

$\implies{3y = 12 - 4}$

$\implies{3y = 8}$

$\implies\bf</p><p>{y = \dfrac{8}{3}}$

$\large\therefore Therefore,$

• $\bf{x=2}$

• $\bf{y=\dfrac{8}{3}}$

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