106k views
3 votes
Solye for x
7(x + 1) = 21

User Doppler
by
4.0k points

2 Answers

3 votes

Answer:

x=2

Explanation:

7×(x +1)=21

7x +7 =21

7x =21 - 7

7x =14

x=14 :7

x=2

7 ×(2 +1)=21

7 ×3 =21

21 =21

User Yessika
by
4.2k points
5 votes

Answer:

x = 2

Explanation:

Given

7(x + 1) = 21 ( divide both sides by 7 )

x + 1 = 3 ( subtract 1 from both sides )

x = 2

User Andrei G
by
4.4k points