Respuesta :

apologiabiology
remember, you can do anything as long as you do it to both sides

2a+3=7
minus 3 both sides
2a+3-3=7-3
2a+0=4
2a=4
divide both sides by 2
(2a)/2=(4/2)
(2/2)a=2
1a=2
a=2

Otras preguntas