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5
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5(- 3x - 2) - (x - 3) = -4(4x + 5) + 13 

 

-Abi

cool 

 Dec 16, 2020
 #1
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+1

Remember:  PEDMAS

 

= -15x -10 -x+3   = -16x-20 + 13

  = -16x -7             = -16x -7    

                                                well there it is....both sides are equal !

 Dec 16, 2020
 #2
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............so ANY value of 'x' will 'solve' the equation.....

Guest Dec 16, 2020
 #3
avatar+114221 
+1

Simplifying   by distributing the  5  the understood -1 and  the  -4

 

-15x -10  - x  + 3   =  -16x  -20  +  13  combine like terms

 

-16x - 7    =   -16x - 7

 

Note  that   any  x   makes this true.....so....the "solution"  is all real numbers

 

 

cool cool cool

 Dec 16, 2020
 #4
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+1

Thanks... I have never heard of Pemdas, but thats probbly becuase im not doing this yet, LOL!

 

 

 

                  cool-Abi

 Dec 16, 2020
 #5
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+1

PEDMAS is the order of which to do mathematical calculations...the hierarchy so-to-speak:

 

Parentheses

Exponents

Division

Multiplication

Addition

Subtraction

Guest Dec 16, 2020

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