3(x-7)-2【9-4(2-x)】=22

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3(x-7)-2【9-4(2-x)】=22
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3(x-7)-2【9-4(2-x)】=22
3(x-7)-2【9-4(2-x)】=22

3(x-7)-2【9-4(2-x)】=22
3x-21-18+8(2-x)=22
3x-39+16-8x=22
-5x=45
∴x=-9

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