4x-21+5x-9=7x-10

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Solution for 4x-21+5x-9=7x-10 equation: 



4x-21+5x-9=7x-10

We move all terms to the left:

4x-21+5x-9-(7x-10)=0

We add all the numbers together, and all the variables

9x-(7x-10)-30=0

We get rid of parentheses

9x-7x+10-30=0

We add all the numbers together, and all the variables

2x-20=0

We move all terms containing x to the left, all other terms to the right

2x=20

x=20/2

x=10

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