10+12y=2y+40 solving equations with variables on both sides

The answer is y=3
10+12y=2y+40

Subtract 2 from 12
10+12y=2y+40
-2y 2y

Which is 10+10y=40

Then subtract 10 from 40

10+10y=40
-10 -10

10y=30

Now you divide

10y=30
— —
10 10

Y=3
Hope this helped

Answercounterclockwise rotation about the origin by 180 degrees followed by reflection about the y-axisexplanationthe given figure has verticesrecall that for counterclockwise rotation about the origin, when we rotate figure pqrs counterclockwise through an angle of 180° about the origin, the coordinates will becomenext, we reflect in the y-axis by negating the x-coordinates of the resulting figure to obtain,therefore the correct answer is c