algebra 2 help on 2 problems? i got them marked wrong on my quiz but i think i did them

K

Kevin

New member
right? 1. solve the system of equation
x+3y-2z=-9
6x-4y+3z=29
2x+2y+z=13
a. [2,1,7]
b. [3,2,9]
c. [infinite number of solutions]
d. [no solution]

i got a .... but i got it marked wrong


2. this augmented matrix represents a system of equations. solve the system of equations.
2 -3 3 | 3
1 7 -2 |-9
6 2 4 |-6

a. (0,0,1)
b. (-3,0,3)
c. infinite number of solutions
d. no solution

i marked d but i got it wrong...
can you show me steps HOW COME???
 
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