Im almost finish please someone helppp

Pls , the question is in the picture!

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Select 2 statements that are true about the equation y+6=-10(x-3).1) the slope of the line is -102) the slope of the line is 33) one point on the line is (3,6)4) one point on the line is (3,-6)