Which steps could be part of the process in algebraically solving the system of equations, y plus 5 x is equal to x squared plus 10 and y is equal to 4 x minus 10 ? Choose two correct answers.
Answer
A
0 is equal to x squared minus 9 x
B
0 is equal to x squared minus 9 x plus 20
C
One x -value of a solution to the system is 4 .
D
y plus 5 x is equal to x squared plus 10 plus 4 x minus 10