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What is the solution set for 7x−3=18 , given the replacement set {0, 1, 2, 3, 4} ? A. x = 0 B.x = 2 C. x = 3 D. x = 4

What is the solution set for 7x−3=18 , given the replacement set {0, 1, 2, 3, 4} ? A. x = 0 B.x = 2 C. x = 3 D. x = 4
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5 votes
What is the solution set for 7x−3=18 , given the replacement set {0, 1, 2, 3, 4} ? A. x = 0

B.x = 2
C. x = 3
D. x = 4

User HobbitOfShire
by
8.0k points

2 Answers

1 vote
Solve for x using inverse operations
Add 3
7x-3+3=18+3
7x=21
Divide 7
7x/7=21/7
x=3
To check-
7(3)-3=18
21-3=18
18=18
The answer is C because it is the solution.
User Ciro Costa
by
8.2k points
4 votes
Move all terms that don't contain x to the right side and solve.
x = 3
User Rossiar
by
8.1k points
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User Stumf
asked Apr 5, 2018 17.6k views
What is the solution set for 7x−3=18 , given the replacement set {0, 1, 2, 3, 4}? A.X=0 B.X=2 C.X=3 D.X=4
Stumf asked Apr 5, 2018
by Stumf
7.5k points
2 answers
1 vote
17.6k views
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