Answer:
Yes, she is correct.
Explanation:
21 has the following factors; 1,3,7,21 and 21 is not a factor of 56 so the GCF is 7.
21/3 is 7 and 56/8 is 7 therefore the expression is also correct.
<span>7q^2 − 28 = 0
</span>7q^2<span> = 28
</span>q^2<span> = 28/7
</span>q^2<span> = 4
</span>q^2= 2^2
<span>q=+ 2 and q = -2
hope that helps
</span>
Answer:
is there options or a image
Step-by-step explanation:
2x+2y=4x+6y
and then x will equal 2y