HELP please give a real answer pleasee

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

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Worth 100 points need the answers asap first row -x^2 2x^2 (x/2)^2 x^2 x is less than 2 x is greater than 2 x is less than or equal to 2 x is greater than or equal to 2 second row -5 -5/2 4 5 •2 is less than x& x is less than 4 •2 is less than or equal to x & x is less than or equal to 4 •2 is less than or equal to x& x is less than 4 •2 is less than x& x is less than or equal to 4