Ibelieve this is substitution
algebra2
2x+3y-2z=1
-x-y+2z=5
3x+2y-3z+=-6

If ac = 12 and ab=7 is it possible that bc =10

How do i start to solve? would appreciate a walk-thru! a bird sitting 16ft above the ground in an apple tree dislodges an apple. after how many seconds does the apple land on the ground? (assuming that no branches will interfere with it's fall)

Which of the points a(6, 2), b(0, 0), c(3, 2), d(−12, 8), e(−12, −8) belong to the graph of direct variation y= 2/3 x?