How do you solve the following linear system: # x + 3y= 8, 2x + y = 15 #?
The most straight forward way of dealing with this one is to make the coefficients of y the same and then subtract so that you only have 1 variable.
Multiply equation (2) by 3 then subtract, giving:
Divide both sides by 5 giving:
Divide both sides by 3