Question

dado a figura abaixo determine o valor de x​

Answer 1

Resposta:

O valor de X corresponde a 18

\begin{gathered}5x - 8 + 20 + 42 = 180 \\ 5x + 2x = 180 - 20 - 42 + 8 \\ 7x = 126 \\ x = 126 \div 7 \\ x = 18\end{gathered}

5x−8+20+42=180

5x+2x=180−20−42+8

7x=126

x=126÷7

x=18