BuxblyblackKiwi BuxblyblackKiwi 16-04-2020 Mathematics contestada Please solve this I am sooo confused help meeeee please please please. I will give you 15 points. Solve the system of the equations: a.) 3(x+y)−7=12x+y 6(y−2x)−1=−45x b.) 5(x+2y)−3=3x+5 4(x−3y)−50=−33y c.) 4x+1=5(x−3y)−6 3(x+6y)+4=9y+19