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What is the first step to solving 9z-21=60​
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What is the first step to solving 9z-21=60​

User Skalinkin
by
5.0k points

2 Answers

9 votes

Answer:

add 21 to both sides

Explanation:

9z-21=60

9z-21+21 =60+21

9z=81

9z/9=81/9

z = 9

User Sonie
by
5.1k points
7 votes
add 21 to both sides, so you get 9z = 81
User Tom Ah
by
5.4k points
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