Question

Determine o valor x de cada caso​

Answer 1

Resposta:

a)

2x=x

2x=1

x=1÷2

x=0.5

b)

\begin{gathered}5x + 10 = 4x - 10 \\ 5x - 4x = - 10 + 10 \\ x = 0\end{gathered}

5x+10=4x−10

5x−4x=−10+10

x=0

c)

\begin{gathered}x - 5 = 2x + 5 \\ - 2x + x = 5 + 5 \\ x = 10 \\ x = 10 \div x \\ x = 10\end{gathered}

x−5=2x+5

−2x+x=5+5

x=10

x=10÷x

x=10