Question

Determinaţi valorile numărului natural x care verifică inegalitatea: a) (x + 3) - (130 - 110) 2 37; b) (x + 123) - (237 - 157) > 2013 c) (67 - 42) - (x + 11) 20; d) (1 437 - 1 320) + (250 – x) > 100. Pls am nevoie repede dau coroana​

Answer 1

Răspuns:

a)

(x+3)-(130-110)=237

(x+3)-20=237

x+3=237+20

x+3=257

x=257-3

x=254

b)

(x+123)-(237-157)>2013

(x+123)-80>2013

2013+80>x+123

2093>x+123

x=2093+123

x=2216

c)

(67-42)-(x+11)=20

25-(x+11)=20

x+11=25+20

x+11=45

x=45-11

x=34

d)

(1437-1320)+(250-x)>100

117+(250-x)>100

117+100>250-x

217>250-x

x=217+250

x=467

Sper că te-am ajutat!!