Question

-3/10 + 7/15 + 3/-20 + -9/10 + 13/15 + 13/-20​

Answer 1

$\sf\fbox\red{Answer:-}$

We have

4x+5:3x+11=13:17

$\frac{4x +5 }{3x + 11} = \frac{13}{17}$

⇒17(4x+5)=13(3x+11)

⇒68x+85=39x+143

⇒68x−39x=143−85

⇒29x=58

$⇒x = \frac{58}{29} = 2$

∴x=2

Answer 2

Answer:

-2/3

Step-by-step explanation:

(-3/10)+7/15+(3/-20)+(-9/10)+13/15+13/-20

= (-18)+28+(-9)+(-54)+52+(-39)/60

= (-40/60) = (-2/3)

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