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What is the value of z in the equation 5z − 9 = 36? 4 5 6 9
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What is the value of z in the equation 5z − 9 = 36? 4 5 6 9

User Pakman
by
7.3k points

2 Answers

1 vote
5z - 9 = 36

add 9 to both sides

5z - 9 + 9 = 36 + 9

5z = 45

divide both sides by 5

5z / 5 = 45 / 5

z = 9
User Adetunji
by
8.1k points
4 votes
First of all, move the known term (-9) at the left of the equal with changed sign.

5z = 36+9

5z = 45

Divide both terms by 5

5z/5 = 45/5

z = 9
User Yevhen Surovskyi
by
7.9k points
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