subject
Mathematics, 13.10.2020 01:01 csarge2972

Zach tried to solve an equation step by step. 3
4
=
z

1
2
3
4
+
1
2
=
z

1
2
+
1
2
Step
1
5
4
=
z
Step
2

4
3


4
3

+
2
1


4
5




=z−
2
1


=z−
2
1

+
2
1


=z


Step 1
Step 2


Find Zach's mistake.

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Answers: 3

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Zach tried to solve an equation step by step. 3
4
=
z

1
2
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