Réponse:
we know that the two legs of an isoceles triangle are equal. this means that: 5x+2=9x-10
all you need is to solve the equation
Explications étape par étape:
5x+2=9x-10
5x-9x= -10-2
-4x= -12
x= -12÷-4
x=3
So tge value of x is 3
I hope this helps :)