Question

preciso de ajuda urgente!! prfvrrr​

Answer 1

Resposta:

Explicação passo a passo:

$d)$

$7.(x+1)=2\:.\:3$

$7x+7=6$

$7x=6-7$

$7x=-1$

$x=-\frac{1}{7}$

$e)$

$54.(2x+1)=45\:.\:3x$

$108x+54=135x$

$135x=108x+54$

$135x-108x=54$

$27x=54$

$x=54/27$

$x=2$

$f)$

$4x=3.(x+1)$

$4x=3x+3$

$4x-3x=3$

$x=3$