Question

a) 5x - 20 = 26

b) 2x + 9 = 11​

Answer 1

$a) \: 5x - 20 = 26 \\ 5x = 26 + 20 \\ 5x = 46 \\ x = \frac{46}{5} \\ x = 9.2 \\ \\ \\ b) \: 2x + 9 = 11 \\ 2x = 11 - 9 \\ 2x = 2 \\ x = \frac{2}{2} \\ x = 1$

Espero ter ajudado!

Answer 2

a)

$5x = 26 + 20 \\ 5x = 46 \\ x = 46 \div 5 \\ x = 9.2$

b)

$2x = 11 - 9 \\ 2x = 2 \\ x = 2 \div 2 \\ x = 1$