5-8 Solve each initial value problem: 5. 6. 7. x₁ = 5x1 + x2 x₁(0)=12, x2' = -2x1 + 2x2 x2(0)=-4. x1'=-3x+2x2 x1(0)=-5, x2=-x1- x2 x2(0)=10. x₁'= x2' = 6x1 6x2 x1(729)=4, x2(729) = 8. 8. x1'= 6x1-5x2 x2' = 8x1-6x2 x₁(4701)=-6, x2(4701)= 1.