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

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!
.

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:

RELATED QUESTIONS
3(4a-2c)-5(3a-2c) (answered by sofiyac)
multiply... (answered by Earlsdon)
3a+9b=8b-9... (answered by checkley71)
2a-5b+c=5 3a+2b-c=17... (answered by ankor@dixie-net.com)
12b^8c^3�2b^2c (answered by ewatrrr)
12b-5=3b (answered by rfer)
How do I solve the equations 3a+9b=8b-a and 5a-10b=4a-9b+5 using... (answered by MathLover1)
Multiply. -3a^2b/35a^5 x 14a^3b^2/-9b^4 Please help. Thank... (answered by Cintchr,sdmmadam@yahoo.com)
multiply -3a^2b over 35a^5 multiplied by 14a^3b^2 over... (answered by stanbon)