Systems - Substitution

Substitution #1

100

Solve by substitution.
y=6x
y=x-5

(-1,-6)

200

Solve by substitution.
y=7x+17
y=-3x-3

(-2,3)

300

Solve by substitution.
y=0
-x+2y=-7

(7,0)

400

Solve by substitution.
y=8x+4
3x-2y=5

(-1,-4)

500

Solve by substitution.
5x+y=1
6x-4y=22

(1,-4)

Substitution #2

100

Solve by substitution.
y=-2x
y=x-3

(1,-2)

200

Solve by substitution.
y=-8
-2x+4y=-22

(-5,-8)

300

Solve by substitution.
y=3x+22
-5x-7y=-24

(-5,7)

400

Solve by substitution.
3x+y=6
-3x-8y=-6

(2,0)

500

Solve by substitution.
4x-6y=20
-x-2y=2

(2,-2)

Substitution #3

100

Solve by substitution.
y=7x-4
y=7x-2

No solution

200

Solve by substitution.
-x-y=-9
-3x+y=-19

(7,2)

300

Solve by substitution.
y=-2x+8
y=2x+4

(1,6)

400

Solve by substitution.
y=-2x-20
y=2x+8

(-7,-6)