SOLUTION: Solve. 3a - 12b - 2c = 5 4a - 3b + 8c = 5 6a + 9b + 16c = 4

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Question 1203153: Solve.
3a - 12b - 2c = 5
4a - 3b + 8c = 5
6a + 9b + 16c = 4
Found 2 solutions by ikleyn, MathLover1:
Answer by ikleyn(52787) (Show Source):
You can put this solution on YOUR website!
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Use a matrix equations solver in your calculator.

Answer by MathLover1(20850) (Show Source):
You can put this solution on YOUR website!

.....eq.1
.......eq.2
......eq.3
-------------------------------
.....eq.1.....multiply by
......eq.3
-----------------------------------

-----------------------------------subtract

...solve for

.........eq.1a

.....eq.1
.......eq.2.....multiply by
-------------------------------------------

-----------------------------------subtract

....multiply by
.............solve for
........eq.1b

from eq.1a and eq.1b we have

...........solve for
......eq.1c

go to eq.1, substitute and

.....eq.1.... solve for

go to

......eq.1c, substitute

go to

........eq.1b, substitute

solution: