Okay, so
a=2b+11
<span>a+b = 2(a-b) </span>
<span>now solve </span>
<span>a+b = 2a-2b </span>
<span>3b = a, put that into the 1st equation: </span>
<span>3b = 2b+11 </span>
<span>b=11 </span>
<span>a = 2(11) +11 = 33 </span>
<span>check in the 2nd equation: </span>
<span>33+11 = 2(33-11) </span>
<span>44 = 2(22) </span>
<span>44 = 44</span>
Answer:
https://www.calculatorsoup.com/calculators/geometry-solids/
use that webiste it will answer your problem
Step-by-step explanation:
B the answer is b bc c and a are wrong and it wouldn’t be correct
9x + 20y = 109x + 20y
9x = 109x
109x - 9x = 0
100x = 0
x = 0
