7y - 12 / 5 minus y - 2/3 is equal to 1

y = 61/90

Step-by-step explanation:

7y - 12/5 - y - 2/3 = 1

Combine like terms.

6y -46/15 = 1

Add 46/15 to both sides.

6y = 61/15

Divide both sides by 6.

y = 61/90

6

Step-by-step explanation:

Start by just picturing a triangle. A triangle has three vertices. Now imagine that the triangle starts coming out of the page or screen into three dimensions. The vertices just double, because there are now two triangles connected by three lines at the vertices. Hope this helps!