What is 37947953743 +289375937=
quick I have a big test and my teacher didn't explaint how to do a shortcut

What is the solution to the system of the equations? x = y - 3 x + 3y = 13

Which expressions are equivalent to -6 + 3m

Which equation shows the variable terms isolated on one side and the constant terms isolated on the other side for the equation -1/2x+3=4-1/4x? a. -1/4x=1 b. -3/4x=1 c. 7=1/4x d. 7=3/4x