2a + 4b + c = 5

x = - 2

a - 4b = - 6

y=1

There is no solution, a+c=-10; b-c=15; a-2b+c=-5 No solution System of Linear Equations entered : [1] 2a+c=-10 [2] b-c=15 [3] a-2b+c=-5 Equations Simplified or Rearranged : [1] 2a + c = - 10 [2] - c + b = 15 [3] a + c - 2b = - 5 Solve by Substitution:

/ / Solve equation [3] for the variable c

[3] c = - a + 2b - 5

/ / Plug this in for variable c in equation [1]

[1] 2a + (-a + 2?-5) = - 10 [1] a = - 5

/ / Plug this in for variable c in equation [2]

[2] - (-? + 2b-5) + b = 15 [2] - b = 10

/ / Solve equation [2] for the variable?

[2]? = b + 10

/ / Plug this in for variable? in equation [1]

[1] (? + 10) = - 5 [1] 0 = - 15 = > NO solution No solution