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# 1. if 3(x+1)=7 find the value of 3x2.    if -3(y-1)=9 find the value of 1/2y  3. if 4-7x=39 find the value of x+1 ### Other questions on the subject: Mathematics Mathematics, 21.06.2019 14:10, lachlyn40
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1. if 3(x+1)=7 find the value of 3x2.    if -3(y-1)=9 find the value of 1/2y  3. if 4...

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