Question

Please help me Simplify 3x-2x+x-9. I was told my answer was wrong

Answer 1

The answer is: " 2x − 9 " .
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Step-by-step explanation:
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Given: 3x − 2x + x − 9 ; Simplify the expression ;

3x − 2x + x − 9 ;

= 3x − 2x + 1x − 9 ;

Note that: "3x − 2x + 1x" are "like terms" that appear in sequential order;

So: "3x − 2x = 1x ;

and: 1x + 1x = 2x ;

And then write down the " − 9 " ;
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" 2x − 9 " .
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The answer is: " 2x − 9 " .
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