#3 When you set the proportion make sure you pick sides that oppose same angle and take them in same order (for example big triangle first and small second)
( 2x+2)/10= (x-2+3)/(x-2);
(2x+2)(x-2)=10(x+1);
2x^2 -4x+2x-4=10x+10;
2x^2 -2x-4-10x-10=0;
2x^2 -12x-14=0; divide by 2
X^2 -6x-7=0; factor
(X-7)(x+1)=0 so x=7 and x=-1
Reject x=-1 because we can’t have negative dimensions so x=7 is the solution
