# 8.A: _solve each system of equations. state which systems _if any_ have no solution or infinite number of solutions

a)

x - y + 2z = 3

-6x + y + 3z = 7

x + 2y - 5z = -4

b)

y + z = 6

x + 5y - 4z = 4

x - 3y + 5z = 7