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30x+4-x/4*30=37.50
We move all terms to the left:
30x+4-x/4*30-(37.50)=0
We add all the numbers together, and all the variables
30x-x/4*30+4-(37.5)=0
We add all the numbers together, and all the variables
30x-x/4*30-33.5=0
We multiply all the terms by the denominator
30x*4*30-x-(33.5)*4*30=0
We add all the numbers together, and all the variables
-1x+30x*4*30-4020=0
Wy multiply elements
-1x+3600x*3-4020=0
Wy multiply elements
-1x+10800x-4020=0
We add all the numbers together, and all the variables
10799x-4020=0
We move all terms containing x to the left, all other terms to the right
10799x=4020
x=4020/10799
x=4020/10799
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