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-4x-(21x)/(4)-(21)/(4)=-3
We move all terms to the left:
-4x-(21x)/(4)-(21)/(4)-(-3)=0
We add all the numbers together, and all the variables
-4x-21x/4+3-21/4=0
We multiply all the terms by the denominator
-4x*4-21x-21+3*4=0
We add all the numbers together, and all the variables
-21x-4x*4-9=0
Wy multiply elements
-21x-16x-9=0
We add all the numbers together, and all the variables
-37x-9=0
We move all terms containing x to the left, all other terms to the right
-37x=9
x=9/-37
x=-9/37
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