a+b-a-c
2 4/5 + 3 1/2 =
0.03 divided by 0.66
solve the following systems of linear equation by substitution method
x+3y=10
2x+y=5
y=(2/3)x-3
y=(2/3)x-3 recta//
5a-4e-2c
2a-2b+3c
If m is an integer, and y=(m-1) (m+2) - (m-1) (m+2) than which of the following must be true?
