Question

7,8(x+3,5)>40,9+x решить неравенство

Answer 1

7.8(x+3.5)>40.9+x⇒  7.8x+27.3>40.9+x ⇒7.8x-x>40.9-27.3⇒
6.8x>13.6
x>2;

Answer 2

7,8х+27,3>40,9+х;    7,8х-х>40,9-27,3;   6,8х>13,6;   х>13,6/6,8;  х>2