Question

gaseste termenul necunoscut : a) 237*3+n=900 ; 124+2+x<253
b)n-(297*2)=250 ; 85*9+x<869
c)n+(148*6)=1.000 ; x-(148*2)<8

Answer 1

a)237*3+n=900<=>711+n=900=>n=900-711=>n=189
124+2+x<253<=>126+x<253=>x<253-126=>x<127

b)n-(297*2)=250<=>n-594=250=>n=250+594=>n=844
85*9+x<869<=>765+x<869=>x<869-765=>x<104

c)n+(148*6)=1000<=>n+888=1000=>n=1000-888=>x=112
x-(148*2)<8<=>x-296<8=>x<296+8=>x<304

Answer 2

a) 237×3 + n =900
711 + n = 900
n= 900-711
n=189

124+ 2+x < 253
126 + x <253
x < 253-126
x < 127

b) n-(297*2)=250 
n- 594 = 250
n = 250+ 594
n = 844

85×9+x<869
765+x<869
x = 869-765
x<104

c) n+(148×6) = 1000
n+ 888 =1000
n=1000-888
n=112

x-(148×2)<8
x-296 <8
x<8+296
x<304