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-13/5+x=-21/5
We move all terms to the left:
-13/5+x-(-21/5)=0
We get rid of parentheses
x-13/5+21/5=0
We multiply all the terms by the denominator
x*5-13+21=0
We add all the numbers together, and all the variables
x*5+8=0
Wy multiply elements
5x+8=0
We move all terms containing x to the left, all other terms to the right
5x=-8
x=-8/5
x=-1+3/5
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