Question

resultado da conta 7 - x = x - 1 ​

Answer 1

bom dia !

$\bf \: 7 - x = x - 1 \\ \bf \: - x - x = - 1 - 7 \\ \bf \: - 2x = - 8( - 1) \\ \bf \: 2x = 8 \\ \bf \: x = \frac{8}{2} = \pink{4}$

A.tt BHETAALFHA

Answer 2

7-x=x-1

7-x-7=x-1-7

-x=x-8

-2x=-8

-2x/-2=-8/-2

x=4