Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
What is the value of
x
x
x
in
x
−
(
−
3
)
=
7
x - (-3) = 7
x
−
(
−
3
)
=
7
Browse the problem library