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8090 [49]
3 years ago
9

-10 + x + 4 - 5 = 7x - 5Step by Step please​

Mathematics
2 answers:
poizon [28]3 years ago
4 0

Answer:  x=-1

Step-by-step explanation:

−10+x+4−5=7x−5

−10+x+4+−5=7x+−5

(x)+(−10+4+−5)=7x−5(Combine Like Terms)

x+−11=7x−5

x−11=7x−5

Step 2: Subtract 7x from both sides.

x−11−7x=7x−5−7x

−6x−11=−5

Step 3: Add 11 to both sides.

−6x−11+11=−5+11

−6x=6

Step 4: Divide both sides by -6.

−6x

−6

=

6

−6

x=−1

kati45 [8]3 years ago
3 0

Answer:

-10 + x + 4 - 5=7x - 5

Combine all like terms (numbers).

-11 + x = 7x - 5

Add 11 to both sides.

x = 7x + 6

Subtract 7x from both sides.

-6x=6

Divide both sides by -6.

x=-1

:)

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(5a +7b)b/(b+2b)=? <br> 4a ,4ab , 2a+4b , 5a+7b/3 , 5a+5b
musickatia [10]
The correct answer is:  [D]:  " \frac{5a + 7b}{3} " .
__________________________________________________
Explanation:
__________________________________________________
\frac{b(5a + 7b)}{b +2b} ; 

Simplify the "denominator" ;   →  (b + 2b = 1b + 2b = 3b) ; 

 and rewrite: 

\frac{b(5a + 7b)}{3b} ; 

Cancel out the "b" in the "numerator" to a "1" ; 
              and cancel the "3b" in the "denominator to a "3" ; 

{since:  "b ÷ b = 1 ";  and since:  "3b ÷ b = 3" } ;

and rewrite as:
____________________________________________________
            \frac{5a + 7b}{3} ; 
____________________________________________________

   →  which is:  Answer choice:  [D]:  "  \frac{5a + 7b}{3} " .
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Read 2 more answers
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