7. Systems of Equations & Matrices

In Exercises 29–42, solve each system by the method of your choice. 3x^2+4y^2=16, 2x^2−3y^2=5

In Exercises 19–28, solve each system by the addition method. y^2−x=4, x^2+y^2=4

In Exercises 19–28, solve each system by the addition method. x^2+y^2=25, (x−8)^2+y^2=41

In Exercises 19–28, solve each system by the addition method. 3x^2+4y^2−16=0, 2x^2−3y^2−5=0

In Exercises 19–28, solve each system by the addition method. x^2−4y^2=−7, 3x^2+y^2=31

In Exercises 47–52, solve each system by the method of your choice. 3/x^2+1/y^2=7, 5/x^2−2/y^2=−3

In Exercises 47–52, solve each system by the method of your choice. −4x+y=12, y=x^3+3x^2

In Exercises 19–28, solve each system by the addition method. x^2+y^2=13,x^2−y^2=5

In Exercises 1–18, solve each system by the substitution method. x+y=1, (x-1)^2+(y+2)^2=10

In Exercises 1–18, solve each system by the substitution method. x+y=1, x^2+xy-y^2=-5

In Exercises 1–18, solve each system by the substitution method. xy=3, x^2+y^2=10

In Exercises 1–18, solve each system by the substitution method. y^2=x^2-9, 2y=x-3

In Exercises 1–18, solve each system by the substitution method. xy=6, 2x-y=1

In Exercises 1–18, solve each system by the substitution method. x^2+y^2=25, x-y=1

In Exercises 1–18, solve each system by the substitution method. y=x^2-4x-10, y=-x^2-2x+14