Question

4.x + 5= 3.x+15
250+30.x=1.000
x+x/2 = 15
2x - 2 = 12 -5x ​

Answer 1

Resposta:

1) X= 10

2) X= 25

3) X1= $\frac{-1-\sqrt{61} }2}$, X2$\frac{-1+\sqrt{61} }2}$

4) X= 2

Explicação passo-a-passo: