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    Mathematics
    Grade-8
    Easy

    Question

    Identify a linear equation in two variables among the following:

    1. 33z + 5 = z
    2. 33(x + y) = 0
    3. 33x + 5x= 0
    4. 33y + 5 = 0

    hintHint:

    A n space e q u a t i o n space i s space s a i d space t o space b e space l i n e a r space e q u a t i o n space i n space t w o space v a r i a b l e s space i f space i t space i s space w r i t t e n space i n space t h e space f o r m space o f space a x space plus space b y space plus space c equals 0 comma w h e r e space a space comma space b space a n d space c space i s space c o n s tan t

    The correct answer is: 33(x + y) = 0

    A n space e q u a t i o n space i s space s a i d space t o space b e space l i n e a r space e q u a t i o n space i n space t w o space v a r i a b l e s space i f space i t space i s space w r i t t e n space i n space t h e space f o r m space o f space a x space plus space b y space plus space c equals 0 comma space w e space k n o w space t h a t space l i n e a r space e q u a t i o n space i n space t w o space v a r i a b l e space i s space w r i t t e n space a s space a x space plus space b y space plus space c space equals 0 space left parenthesis space w h e r e space a space i s space t h e space c o e f f i c i e n t space o f space x space a n d space b space i s space t h e space c o e f f i c i e n t space o f space y space a n d space right parenthesis S O space space 33 x space plus space 33 space y space equals space 0 space 33 space left parenthesis space x plus y space right parenthesis space equals space 0 comma space i s space t h e space c o r r e c t space a n s w e r

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