Question

l) 3(2-2x) =-7x essa também

Answer 1

$3(2 - 2x) = - 7x$
$6 - 6x = - 7x$
$6 = - 7x + 6x$
$6 = - x$
$x = - 6$

Answer 2

3 (2 - 2x) = -7x
6 - 6x = -7x
-6x + 7x = -6
1x = -6.