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0.05x+0.12(x+5000)=1178
We move all terms to the left:
0.05x+0.12(x+5000)-(1178)=0
We multiply parentheses
0.05x+0.12x+600-1178=0
We add all the numbers together, and all the variables
0.17x-578=0
We move all terms containing x to the left, all other terms to the right
0.17x=578
x=578/0.17
x=3399+0.16999999999996/0.17
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