x-10= -30
move -10 to the other side
sign changes from -10 to +10
x-10+10= -30+10
x= -30+10
Answer:
x= -20
I could be very wrong, but I believe the answer is C
Answer:
(6-1) = 5 Because Obio 6 minus 1 equals 5
(N instead of X for variable)
N x 7 < 21
He should draw six faces, since there are six faces on a rectangle.
