Respuesta :

Answer:

Step-by-step explanation:

they intersect so their equal to each other so first you wanna find x.

3x + 4 = 4x - 1

-3x         -3x

4 = x - 1

+1      +1

5 = x

then plug in x on each diagonals JL and KM.

JL= 3(5) + 4 = 19

KM = 4(5) - 1 = 19

SEE? THEY ARE EQUAL WHICH MEANS MY ANSWER IS CORRECT.:)