Solve for a,b & c. 2a-5b+c=1, a+c=2, b-3c=-3

Simultaneous equation with 3 unknowns?
in Algebra 2 Answers by Level 1 User (120 points)

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1. a+c=2, so a=2-c... 2. b-3c=-3, so b=3c-3... maen...2a-5b+c=1, 2(2-c) -5*(3c-3) +c=1... 4-2c -15c +15 +c=1... (-17c+c)=1-4 -15... -16c=-18... c=18/16=9/8=1.125... a=2-c=0.875... b=3c-3=3.375-3=0.375
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Thanks very much,really appreciate the help!
by Level 1 User (120 points)

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