83-63=20
So your answer is 20
Answer: -4x +7y=26
4x +7y=2
=. 0+ 14x=28
X= 2. Plug x in. Y =. 4(2) +7y= 2. = 8+7y=2. 7y=2-8 7y=-6 y=-6/7
Step-by-step explanation:
All you have to do is add those two numbers given and subtract by 180. all of the angles shall add up to 180 if not then you dic something wrong
There is no x in the equation to replace 3 with
<span>Six people went into the woods to look for truffles. On average they collected 7 truffles per person. The average of the first four people to come back was 8 truffles per person. In fact, the fourth person to come back had 11 truffles in his basket. How many truffles did the last three people collect altogether:
please see the attachment for mathematical work:
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