Question

verify that -(x + y) = (-x) + (-y), when x

¡]x=3/4,y=6/7​

Answer 1

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Answer 2

Given :-

x=3/4 , y=6/7

-(x + y) = (-x) + (-y)

To find :- Verify

Verification :-

Given eqⁿ

$- (x + y) = ( - x) + ( - y)$

Putting values

$- ( \frac{3}{4} + \frac{6}{7} ) = ( - \frac{3}{4} ) + ( - \frac{6}{7} )$

Solving first Left hand side (LHS)

$- ( \frac{3}{4} + \frac{6}{7} ) \\ - ( \frac{(3 \times 7) + ( 4 \times 6)}{4 \times 7} \\ - ( \frac{21 + 24}{28} ) \\ - ( \frac{45}{28} ) \\ - \frac{45}{28}$

Solving right hand side (RHS)

$\frac{ - 3}{ - 4} - \frac{6}{7} \\ \frac{( - 3 \times 7) - ( - 4 \times 6)}{ - 4 \times 7} \\ \frac{ - 21 + 24}{ - 28} \\ \frac{3}{ - 28}$