Answer:
-3
Step-by-step explanation:
<span>b. 4+12÷2=4+6=10
c. (20–5)•3=15•3=45</span>
The answer is -4,0 4,8 because u would solve for one variable in one of the equations and then substitute the result into the other
Hope that helps.Have a nice day!! ^^
So in matt's equation, he made a mistake in the a transision from line 2 to line 3
in line 2: -4(-2)2
in line 3: -4(4)
the mistake is that -2 times 2 is not equal +4 it is equal to -4
also from lines 5 to 6 he made a mistake in order of opperations (mulit division then addition and subtract)
line 5: -10+30/5
line 6: 20/5
so he first subtracted 10 then divided, he should have divided then subtracted
so the equation should have equaled
Karen used the correct (-) times (+) property and the order of operations
so Karen is correct and Matt is wrong.
