Question
Solve: $0.5\text{x}+\frac{\text{x}}{3}=0.25\text{x}+7$
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Answer
We have: $0.5\text{x}+\frac{\text{x}}{3}=0.25\text{x}+7$ $\Rightarrow\frac{1.5\text{x}+\text{x}}{3}=0.25\text{x}+7$ $\Rightarrow1.5\text{x}+\text{x}=3(0.25\text{x}+7)$ $\Rightarrow2.5\text{x}=0.75\text{x}+21$ $\Rightarrow2.5\text{x}-0.75\text{x}=21$ $\Rightarrow1.75\text{x}=21$ $\Rightarrow\text{x}=\frac{21}{1.75}$ $\Rightarrow\text{x}=12$
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