Answer:
wait what the letter look weird ?
Step-by-step explanation:
Ok so here it is
natural numbers: counting numbers like 1,2,3,4,5...
whole numbers: counting numbesr and 0, so 0,1,2,3,4
integers: negative counting numbers and 0, so -3,-2,-1,0,1,2,3...
ratioal numbers, things that can be represented in a/b
percent means parts out of 100 so
x%=x/100
that is a ratioal number
negatives are integers
We have that
<span>x-y=3 -------> equation 1
and
ax+3a=0------> equation 2
we know that
</span>
ax+3a=0-------> a*(x+3)=0
a=0 and (x+3)=0
if a is a nonzero number
then
only
x+3=0------> x=-3
substitute the value of x=-3 in the equation 1
x-y=3------> (-3)-y=3-----> y=-6
the system has one solution-------> the point (-3,-6)