2x-3y=-29 x+4y=13 what is the new equation after the expression equivalent to x from the second equation is substituted into the first equation

50 plz, given the system of equations, match the following items. x + 3 y = 5 x - 3 y = -1 a) x-determinant b) y-determinant c) system determinant match the following to the pictures below.

(x-5)1/2+5=2 what is possible solution of this equation

5, 6, 10 question: a. determine whether the side lengths form a triangle. (explain your reasoning) b. if it is a triangle, determine whether it is a right, acute, or obtuse triangle. (show your work)