What is 12x-13-x-9+10x ?

The solution to 12x-13-x-9+10x is 21x-22

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simplify 12x-13-x-9+10x

simplify

12 x - 13 - x - 9 + 10 x

21 x - 22

Solution steps

12 x - 13 - x - 9 + 10 x

Group like terms

= 12 x - x + 10 x - 13 - 9

Add similar elements:

12 x - x + 10 x = 21 x

= 21 x - 13 - 9

Subtract the numbers:

- 13 - 9 = - 22

= 21 x - 22

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