Question

решите уравнения
9х+10=0
-9х+10=-7
-4х+5=8х
х+12=4х

Answer 1

$1)9x+10=0 \ 9x=-10 \ x=-1 frac{1}{9} \ \ 2)-9x+10=-7 \ -9x=-7-10 \ -9x=-17 \ x=1 frac{8}{9} \ \ 3)-4x+5=8x \ -4x-8x=-5 \ -12x=-5 \ x= frac{5}{12}$

$4)x+12=4x \ x-4x=-12 \ -3x=-12 \ x=4$