Question

PLEASE ANSWER FASTER
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Answer 1

Answer:

Question:-

verify the property x ×y=y×x by taking x=2,y=7/-8

solution:-

put the value of x and y in given equation

$x \times y = y \times x \\ 2 \times \frac{7}{ - 8} = \frac{7}{ - 8} \times 2 \\ 2 \times \frac{ - 7}{8} = \frac{ - 7}{8} \times 2 \\ \frac{ - 7}{4} = \frac{ - 7}{4}$

${ \huge \green{hence \: proved}}$

Answer 2

Answer:

=>  2+7/-8 = 7/-8+2

=>  2+((-7)/8)=((-7)/8)+2

=>  2/1 + ((-7)/8) = 2/1 + ((-7)/8)

=>  16-7/8 =  (-7)+16/8

=>       9/8=9/8 (x+y = y+x)

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