Verify -x-y-x-y 0ex0exif x-5 and y-3

Here we have ( x)+( y)= (x+y) 0ex0exif x=5 and y=3So, ( 5)+( 3)= (5+3)0ex0ex⇒ 5 3= 80ex0ex⇒ 8= 8Hence verified ...

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Byju's Answer

Standard VII

History

Rani Abbakkadevi

Verify -x+-y=...

Question

Verify
$(- x) + (- y) = - (x + y) i f x = 5 a n d y = 3$

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Solution

Here we have
$(- x) + (- y) = - (x + y) i f x = 5 a n d y = 3$
So,
$(- 5) + (- 3) = - (5 + 3) \Rightarrow - 5 - 3 = - 8 \Rightarrow - 8 = - 8$
Hence verified

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Similar questions

Find the following products and verify the result for x = -1, y = - 2:

$(3 x - 5 y) (x + y)$

Q. Find the following product and verify the result for x = − 1, y = − 2:
(3x − 5y) (x + y)

$Verify that x \times (x - z) = x \times y - x \times z, i f (i) x = \frac{4}{5}, y = - \frac{7}{4} ~ a n d z = 3 (i i) x = \frac{3}{4}, y = \frac{8}{9} ~ a n d z = - 5$

Verify the property : $x + y = y \times x$ by taking:

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Q. Question 105(ii)
Verify the property x + y = y + x of rational number by taking

x = \frac{- 2}{3}

and

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Verify (-x)+(-y)=-(x+y)ifx=5andy=3

Here we have (-x)+(-y)=-(x+y)ifx=5andy=3So, (-5)+(-3)=-(5+3)⇒-5-3=-8⇒-8=-8Hence verified

Verify
$(- x) + (- y) = - (x + y) i f x = 5 a n d y = 3$

Here we have
$(- x) + (- y) = - (x + y) i f x = 5 a n d y = 3$
So,
$(- 5) + (- 3) = - (5 + 3) \Rightarrow - 5 - 3 = - 8 \Rightarrow - 8 = - 8$
Hence verified