Minus the 21 from the other side of the equation making it 7x=-21 then u divide the 7 from the x to the -21 resulting in x=-3
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Answer:
3( 73/84 )left over
Step-by-step explanation:
She had 6 gallons in total
2/3+1/4+1/2+5/7=179/84 = 2 ( 11/84)
6/1-179/84 = 325/84 = 3(73/84)
She used 179/84
She have left 325/84
179/84 + 325/84 = 6
With mixed numbers:
2 11/84
3 73/84
2+3=5 11/84+73/84= 84/84 =1
5+1=6
7/5y= y+2/5y
0.68y = y-0.32y
3/5y=y-2/5y
1.32y=y+0.32y
