Bonjour On considère l'équation 5-4a= 7+ a.
a. Comment se nomme l'inconnue?
b. Pour savoir si le nombre 3 est solution,
compléter :
5- 4 x3 =
7 + 3 =
donc 3
c. Le nombre -0,4 est-il solution?​

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