Question

sum of - 7x,8x,x,-9x is​

Answer 1

Step-by-step explanation:

According to the question,

-7x+8x+x+(-9x)

-7x+8x+x-9x

-7x+8x-8x

X-8x

=-7x

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Answer 2

The sum of - 7x , 8x , x , - 9x is - 7x

Given :

The expressions - 7x , 8x , x , - 9x

To find :

The sum of - 7x , 8x , x , - 9x

Solution :

Step 1 of 2 :

Write down the given expressions

Here the given expressions are - 7x , 8x , x , - 9x

Step 2 of 2 :

Find the sum

The required sum

$\displaystyle \sf =( - 7x ) + (8x ) + ( x ) + ( - 9x)$

$\displaystyle \sf = - 7x + 8x + x - 9x$

$\displaystyle \sf = - 7x + 8x - 8x$

$\displaystyle \sf = - 7x + 0$

$\displaystyle \sf = - 7x$

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