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  • 02-12-2019
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7y+3=4y-18
help plzs!!!!......​

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Аноним Аноним
  • 02-12-2019

7y+3=4y-18

move 4y to the other side

sign changes from +4y to -4y

7y-4y+3= 4y-4y-18

7y-4y+3= -18

3y+3= -18

move 3 to the other side

3y+3-3= -18-3

3y= -21

divide both sides by 3 to get y by itself

3y/3= -21/3

answer:

y= -7

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