2x-4-5=21-13x

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Solution for 2x-4-5=21-13x equation:



2x-4-5=21-13x
We move all terms to the left:
2x-4-5-(21-13x)=0
We add all the numbers together, and all the variables
2x-(-13x+21)-4-5=0
We add all the numbers together, and all the variables
2x-(-13x+21)-9=0
We get rid of parentheses
2x+13x-21-9=0
We add all the numbers together, and all the variables
15x-30=0
We move all terms containing x to the left, all other terms to the right
15x=30
x=30/15
x=2

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