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NISA [10]
3 years ago
13

7th grade math help me pleaseee

Mathematics
2 answers:
NikAS [45]3 years ago
7 0
U have to do what is in the parentheses first
Nataly [62]3 years ago
5 0

Step-by-step explanation:

7.

7 +  \frac{m}{8}  =  - 2 \\  \frac{m}{8}  =  - 2 - 7 \\  \frac{m}{8}  =  - 9 \\ m =  - 9 \times 8 \\  =  - 72

8.

\frac{ - 1}{5} k + 1 = 11 \\  \frac{ - k}{5}  + 1 = 11 \\  \frac{ - k}{5}  = 11 - 1 \\   \frac{ - k}{5}  = 10 \\  - k = 10 \times 5 \\  - k = 50 \\ k =  - (50) \\  =  - 50

9.

- 6 +  \frac{1}{3} w = 0 \\  \frac{1}{3} w = 0 + 6 \\  \frac{1}{3} w = 6 \\ w = 6 \div  \frac{1}{3}  \\  = 6 \times 3 \\  = 18

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