-84
21x4=84 plus the negative
Answer:
8
Step-by-step explanation:
Answer:
-10
Step-by-step explanation:
subtract 4 from both sides
divide by 2
Let <span>simplify the equations

and

:
</span>
<span>1)
</span>
<span>and
</span>
<span>2)

.
</span>
<span>Equate the coefficients:
</span><span>
</span><span>

.</span>
Then

and mnp=24.
<span />