3 years ago

Owing each step. Wri7(m + 5) = 21

Mathematics

2 answers:

Karo-lina-s [1.5K]3 years ago

6 0

Answer:

m=-2

Step-by-step explanation:

7(m+5)=21

m+5=21/7

m+5=3

m=3-5

m=-2

Artemon [7]3 years ago

6 0

7(m + 5) = 21

multiply the bracket by 7

(7)(m)=7m

(7)(5)=35

7m+35=21

move +35 to the other side

sign changes from +35 to -35

7m+35-35=21-35

7m=21-35

7m=-14

divide both sides by 7 to get m by itself

7m/7=-14/7

cross out 7 and 7, divide by 7 and then becomes 1*1*m=m

m=-14/7

answer:

m=-2

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Owing each step. Wri7(m + 5) = 21​

Owing each step. Wri7(m + 5) = 21