How to solve this equation -3(2r +7)=3

Use the distributive property on the parentheses, then solve accordingly.

-3(2r+7)=3
-6r-21=3
-6r=24
r=-4

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