Question

2 pe 3 •a+120=a.Va rog ajutatima e foarte urgent

Answer 1

2/3·a+120=3/3·a⇒3/3.a-2/3·a=120

1/3·a=120/  ·3

3/3·a=360⇒a=360

V:2/3·360+120=240+120=360

Answer 2

2 pe 3 •a+120=a.
se aduce la acelasi numitor comun (3)
$\frac{2a}{3} +120=a \\ \\ 2a+3*120=3*a \\ \\ 3a-2a=3*120 \\ \\ a=360$
verificare

2a/3+120=a
2*360:3+120=360
240+120=360
360=360