Question

use the systematic method to solve the following equation.


$a)3z + 12 = 15$
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Answer 1

Answer:

1

Step-by-step explanation:

3z+12=15

3z=15-12

3z=3

z=3/3

z=1

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Answer 2

Step-by-step explanation:

a. 3z + 12 = 15

3z = 15 - 12

3z = 3

z = 3/3

z = 1