Which expression gives the measure of abc

Which of the symbols correctly relates the two numbers below check all that apply 6? 6

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Labc is reflected across x = 1 and y = -3. what are the coordinates of the reflection image of a after both reflections?