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18-10-2015
Mathematics

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justify -5(2u+10)=2(u-7)

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18-10-2015

-5 (2u+10)=2 (u_7) apply distributive property -10u-50=2u-14 collect like terms -10u-2u=50-14 when you move the number to the other side sign change -12u =36 to get rid of 12 divide 12 on both sides -12u/-12= 36/-12 U= -3

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