sandracruz1973 sandracruz1973

10-09-2015
Mathematics

contestada

0.4(2 - q) = 0.2(q + 7)

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Ameliamarie13 Ameliamarie13

10-09-2015

0.4(2-q)= 0.2(q-7)
2(2-q)=1(q-7)   (multiplied both sides by 5)
4-2q=q-7    (distributed)
4=3q-7    (added 2q to both sides)
11=3q     (added 7 to both sides)
q=11/3 or 3.667    (divided both sides by 3)

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