System of equations have one solution
A always
B sometimes
C never
2 answers:
C never, there are always different methods to solve a problem but don't forget that the equation always stays the same!
B sometimes
is the correct answer
You might be interested in
The fraction for 469 is 469/1.
Showing the relationships among concepts.
At first, we need to find x.
QR = LN
2x+1 = 3x-7
x=8
Substitute value of a=8 into QR = 2x+1.
QR = 2*8+1 = 17
QR =17
2 dollar coins+ 2 50 cent coins+ 3 25 cent coins+ 1 dime+ 1 nickel= $3.90
