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18 votes
Solve for x
-18 = 9 - 3x

2 Answers

6 votes

Rewrite the equation so that the x term is on the left:

9 - 3x = -18

Move the number to the right and change the sign:

-3x = -18 - 9

-3x = -27

Change the sign of both terms:

3x = 27

Move the 3 to the right and change the sign:

x = 27 ÷ 3

x = 9 is your answer.

User Anton Balashov
by
9.1k points
1 vote

Answer:

3x=9+18

=27

x =27÷3

x=9

the answer of x is 9

User Yama
by
8.1k points

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