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21=8+x (solve for x)

21=8+x (solve for x)
asked 231k views
21 votes
21=8+x (solve for x)

asked
User Alex Santelle
by
7.4k points

2 Answers

4 votes

Answer:

x=13

Explanation:

21=8+x

Swap sides so that all variable terms are on the left hand side.

8+x=21

Subtract 8 from both sides.

x=21−8

Subtract 8 from 21 to get 13.

x=13

answered
User Alea
by
7.5k points
0 votes

Answer:

X=13

Explanation:

answered
User Bjan
by
7.9k points
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