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6j + 7 =21 -j pls show work​
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3 votes
6j + 7 =21 -j pls show work​

User Frahm
by
5.4k points

2 Answers

1 vote

Answer:

j = 2

Explanation:

6j + 7 = 21 - j

6j + j = 21 - 7

7j = 14

j = 14/7

j = 2

User Diego Alvarez
by
5.3k points
3 votes

Answer:

Explanation:

6j + 7 = 21 - j

Add 'j' to both sides

6j + 7 + j = 21 - j +j

7j + 7 = 21

Subtract 7 form both sides

7j + 7 - 7 = 21 - 7

7j = 14

Divide both sides by 7

7j/7 = 14/7

j = 2

User Ahmad Karimi
by
5.4k points
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