Two sides of a triangle have the same length. the third side measures 7 m less than twice the common length. the perimeter of the triangle is 13 m. what are the lengths of the three sides?

F(x)=|x| is shifted down 4 units and to the right 3 units.

Simplify 5 square root of 7 end root plus 12 square root of 6 end root minus 10 square root of 7 end root minus 5 square root of 6 . (1 point) 5 square root of 14 end root minus 7 square root of 12 5 square root of 7 end root minus 7 square root of 6 7 square root of 12 end root minus 5 square root of 14 7 square root of 6 end root minus 5 square root of 7

Asap! i'm not good math and i'm lost.