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Systems of Equations Substitution and Addition Methods

Solve the following system by graphing:

14.
x - 2y = -6
y = -3x/2 - 1

15.
y < 5x - 2
y > 3x - 2

Solve the following systems by the addition method:

16.
x + 2y = 4
3x - 6y = 6

17.
4x - 5y = 20
y = 4/5x - 4

Solve the following systems by the substitution method:

18.
7x - 4y = 26
y = x - 5

19.
4x + y = 7
3x - y = 0

20.
x - 2y = 0
4x - 8y = 0

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Solution Summary

Systems of Equations are solved using Substitution and Addition/Elimination Methods. Full working is shown.

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