Question

Qual a equacao de 1 grau de 20×-13=20+9

Answer 1

20x-13=20+9
20x=20+9+13
20x=42
x=42/20 ou 2,1
Bons estudos..(;

Answer 2

20x - 13 = 20 + 9
20x = 20 + 9 + 13
20x = 42
x = $\frac{42}{20}$
x = $\frac{21}{10}$