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Easy explanation of substitution

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Easy explanation of substitution

Posted by Asmi Lamba 7 years, 8 months ago

CBSE > Class 10 > Mathematics

2 answers

Kanishka Singh . 7 years, 8 months ago

Substitution means subsituting the value of one variable in the other equation to find the value of other variable. For example : x+y=2 .......(1) x-y=3. ..........(2) We can write equation (2) as x=3+y. ........(3) Now put the value of x in eq. (1) x+y=2 (3+y)+y=2 3+2y=2 2y=2-3 y=-1/2 Substituting value of y in equation 2 x-y=3 x-(-1/2)=3 x+1/2=3 2x+1/2=3 2x+1=6 2x=5 x=5/2 Hence we get value of x and y by substituting value of x to find the value of y.

2Thank You

Nipun Goyal 7 years, 8 months ago

Substitution is itself so easy.

0Thank You

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