CHAPTER5REVIEW
Solvethelinearsystembysubstitution.
1.-7x–2y=-132.-5x+y=-3
x–2y=113x–8y=24
Solvethelinearsystembyelimination.
3.-4x–2y=-124.-7x–9=8y
4x+8y=-2422–4x=-9y
Howmanysolutionsdoesthelinearsystemhave?
Explain.
5.x=-3y+286.2x+3y=117.x+2y=3
x+4y=36-4x–6y=-22-2x–4y=-20
Solvethelinearsystem.
8.4x–y=-129.3x–10y=-25
-6x+5y=-320=4x+40y
10.5y=-2x+2011.x+y=10
3x–37=10y-x–2y=-14
12.Solvethelinearsystembygraphing.
4y=2x+12
5x–2y=10
13.Graphthesystemoflinearinequalities.
3x–2y≥-2
x–2y<2
14.Writeasystemoflinearinequalitiesrepresentedby
thegraph.
15.Determine whether the ordered pair is a solution of
the linear system.
(3, 2)
2𝑥 + 3𝑦 = 12
𝑥 − 4𝑦 = −5
16. Marc sold 532 tickets for the school play. Student
tickets cost $3 and adult tickets cost $6. Marc’s sales
totaled $2490. How many adult tickets and how many
student tickets did Marc sell?
17. Graph the inequality 2𝑥 − 5𝑦 ≤ −10 in a coordinate
plane.
18. Determine whether the ordered pair is a solution of
the inequality.
2y – 5x < 2; (1, 5)