PLZ PLZ Help me! I don't know how to do this. Can someone please help me.

Mathematics

2 answers:

Assoli18 [71]3 years ago

6 0

7)
4n + 5 + 8n - 5 = 180
12n = 180
n = 15

answer
Last one
n = 15
8)
8.5x + 2 = 9x - 6
-0.5x = -8
x = 16
answer
B. x = 16

9)

4z + 3z + 6 = 90
7z = 84
z = 12

answer
A. z = 12

garik1379 [7]3 years ago

3 0

N in this problem is equal to 15.

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