Question

what is substitution method in linear eqn in two variable​

Answer 1

Q}what is substitution method in linear eqn in two variable ?

ANSWER-

□SUBSTITUTION METHOD IS A METHOD OF SUBSTITUTE THE VALUE OF EITHER X OR EITHER Y .✔✔

□SUBSTITUTION MEANS EXCHANGING PLACE OF ANY VARIABLE WITH ANOTHER.✔✔

□WE TAKE A EXAMPLE TO ELABORATE YOUR TOPIC

$x + y = 4 \\ then \: we \: substitute \: either \:v alue \: of \: x \: or \: y \\ when \: we \: substitute \: value \: of \: x \\ x = 4 - y \\ when \: we \: substitute \: value \: of \: y \\ y = 4 - x$

SO ,FROM THESE EXAMPLE WE KNOW HOW TO SUBSTITUTE ANY VARIABLE

THEN, WE PUT THR VALUE OF THAT VARIABLE IN SECOND EQN.✔✔

Answer 2

Answer:-

To solve systems using substitution, follow this procedure:

Select one equation and solve it for one of its variables.

In the other equation, substitute for the variable just solved.

Solve the new equation.

Substitute the value found into any equation involving both variables and solve for the other variable.

Check the solution in both original equations.

Usually, when using the substitution method, one equation and one of the variables leads to a quick solution more readily than the other. That's illustrated by the selection of x and the second equation in the example which is shown in pics...