Step-by-step explanation:
To solve the equation 3x + 5y = k, where k is a constant, we can use substitution or elimination methods. 1) Substitution: Let's say y = t - x (adding both sides by x), then the equation becomes: 2x + 5t - 6x = k 0.5(2x+3t)=k+9/4 x= (-3k-9)/8 and y=(1/8)(7k-27)
2) Elimination method: If we add both sides of the first equation by "t" and subtract it from the second one, we get a new set of equations with only one variable in each one again! We can isolate either "y" or "x" on their o
