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21x/8+3x/8+7x=19-71
We move all terms to the left:
21x/8+3x/8+7x-(19-71)=0
We add all the numbers together, and all the variables
21x/8+3x/8+7x-(-52)=0
We add all the numbers together, and all the variables
7x+21x/8+3x/8+52=0
We multiply all the terms by the denominator
7x*8+21x+3x+52*8=0
We add all the numbers together, and all the variables
24x+7x*8+416=0
Wy multiply elements
24x+56x+416=0
We add all the numbers together, and all the variables
80x+416=0
We move all terms containing x to the left, all other terms to the right
80x=-416
x=-416/80
x=-5+1/5
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