231k views
5 votes
|x+3|=7
solve
pls show work

User Dastrobu
by
7.0k points

2 Answers

7 votes

Answer: x=4

Explanation:

Firstly, x+3 is in absolute value and absolute value basically turns that into positive, which brings us to x+3=7. Now, use your basic algebra skills to subtract 3 form both sides and get x=4. Hope this helps!

User Mohsin Mahmood
by
8.2k points
4 votes

Answer:

Two roots: -10 and 4

Explanation:

Since the expression inside the modular brackets can be positive or negative, the equation can have two different roots. And it is solved for the positive and negative options.

Positive option:

x+3=7
x=7-3
x=4

Negative option:

x+3=-7
x=-7-3
x=-10

User Vijayant Bhatia
by
7.8k points