Air. Food. Water. People/animals
3x + 7 = x - 15
First, make sure to subtract
from both sides.
Second, simplify 3x - x to get 2x, and then keep the 7.
Third, subtract
from both sides.
Fourth, simplify -15 - 7 to get -22.
Fifth, take the 2 and divide both sides by it, keeping the
by itself.
Sixth, since 11 goes into 2 to get 22, simplify the fraction to 11.
Answer:
x = -11
B
because A is a simile
c and d don't really fit, plus I know for a fact is it b.