275,900 views
23 votes
23 votes
Using substitution, which value of x makes this equation true?

3+x = 10

A. 13
B. 7
C. -7
D. -13

User Amol Kolekar
by
3.2k points

2 Answers

28 votes
28 votes
B.

x=7.

Step by step:

x+3=10.

x=7.

(I subtracted 3 on both sides)

Hope this helped!! :)
User Namphibian
by
3.3k points
26 votes
26 votes

Answer:

The answer is B. 7

Explanation:

3 + x = 10

3 + 7 = 10

User Monsabre
by
2.6k points