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Properties of Integers Using Literals

3x+2-2x-1=7

Question

3(x +2)-2(x-1)=7

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Solution

3(x+2)-2(x-1)=7
3x+6-2x+2=7
3x-2x+6+2=7
x+8=7
x=7-8
x = -1

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3(x+2)-2(x-1)=7

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