👤

Rezolvati ecuatiile : h) x-(243+125)=799
i)215-(x+12)=170
j)123-(x-30)=61
k)123-(30+x)=61
l)8.501-(120+x)-155=6.502
Ajutatima va rog..!
Rezolvare completa


Răspuns :

h) x - (243 + 125) = 799
x - 368 = 799
x = 799 + 368
x = 1167

i) 215 - (x + 12) = 170
215 + x - 12 = 170
203 + x = 170
x = 203 - 170
x = 33

j) 123 - (x - 30) = 61
123 - x + 30 = 61
153 - x = 61
x = 153 - 61
x = 92

k) 123 - (30 + x) = 61
123 - 30 - x = 61
93 - x = 61
x = 93 - 61
x = 32

l) 8501 - (120 + x) - 155 = 6502
8501 - 120 - x - 155 = 6502
8226 - x = 6502
x = 8226 - 6502
x = 1724

h)x-(243-125)=799⇒x-118=799⇒X=799+118⇒X=917
i)123-(x-30)=61⇒123-x+30=61⇒153-x=61⇒-x=--153+61⇒-x=-92/(-1)=x=92
j)215-(x+12)=170⇒215-x-12=170⇒203-x=170⇒-x=-203+170⇒-x=-33/(-1)=x=33
k)123-(30+x)=61⇒23-30-x=61⇒-7-x=61⇒-x=61+7⇒-x=68/(-1)⇒x=-68

l)8.501-(120+x)-155=6.502⇒8.501-120-x-155=6.502⇒8.501-275-x=6.502⇒-266.499-x=6.502⇒-x=266.499+6.502⇒-x=273.001/(-1)⇒x=-273.001
succes