How do you solve 0.2c + 1.5d = -2.7 and 2a = 5/4 - 5/2b?
Sep 11, 2015
The pair of equations (as stated) can not be solved.
You have 2 equations but 4 variables. In general you need to have (at least) as many equations as variables to (have a chance to) find a solution.