Question

como resolver essa equação?
-3x+10=5x+12

Answer 1

-3x + 10 = 5x + 12
-3x -5x = 12 -10
 -8x = 2      
 $x= \frac{2}{-8} ~~~~ simplifica~~ por~~2$
$x= - \frac{1}{4}$
 

Answer 2

-3x+10 = 5x+12 ~~passando valores~~
10-12 = 5x+3x
-2 = 8x
-2/8 = x
-0,25 = x ou -1/4 = x

S = {-0,25}; S = {-1/4}