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Solve the following systems of equations by elimination:
p + 5q = 5
p + q = -3

Sagot :

Mlcparra16viz
p + 5q = 5 ... [1]
p + q = -3 ... [2]

[1] - [2]
p + 5q = 5
-p  -q = 3
     4q = 8
     q = 2

p + q = -3
p + 2 = -3
p = -5