Question

Решите неравенство (z-4)/2-3≥(2-z)/4+1

Answer 1

4*(z-4)/2-4*3≥4*(2-z)+4*1
2(z-4)-12≥2-z+4
2z-8-12≥6-z
2z-20≥6-z
2z+z≥6+20
3z≥26
z≥26/3