5k - 2k = - 11
2 3 6
-126=14k
9c squared+8m squared+6c-6c squared+3m squared+2c
m/4=-13
-142=-13
2a-3b-4c+5d=4
-a-5b+2c-10d=-29
a+4b-3c-d=16
-a+b+5c-2d=-6
gauss eliminationm
simplify:9c squared+8m squared+6c+6c squared+3m squared+2c
3(y+3y)
=12
increase 57 by 8 percent
21=7n
