Question

19+20+2×=+4×-30 me ajudem pfvr

Answer 1

Boa noite,

19+20+2×=+4×-30

2×-4×=-30-19-20
-2×=-69
x=-69/2 (-1)
x=69/2

Answer 2

19 + 20 + 2x = 4x - 30
39 + 2x = 4x - 30
2x - 4x = - 30 - 39
- 2x = - 69   (-1)
2x = 69
x = 69/2

$\boxed{\boxed{\mathtt{Resposta: x = \dfrac{69}{2}}}}$