Respuesta :
the answer is B.(5,-19) because x=5 and y= -19
so -5(5)+6=-19
and -3(5)-4=-19
so -5(5)+6=-19
and -3(5)-4=-19
to find this use substitution. substitute -3x-4 in for Y
now you have
-5x + 6 = -3x -4 add 5x and 4 to both sides
10= 2x divide by two on both sides
x=5
If you place 5 in where x is, you will get y= -19
The answer is B
now you have
-5x + 6 = -3x -4 add 5x and 4 to both sides
10= 2x divide by two on both sides
x=5
If you place 5 in where x is, you will get y= -19
The answer is B