Question

(dx2-190) :6+3x295=1000 . e +e+e+e-270:9=3 x e . 82+4x [f-3 x (54 +54 :6)]=2x(256+163) . (19+g x3) : (108:6-1x13)=5 sunt 4 exercitii

Answer 1

(dx2-190):6+885=1000
(dx2-190):6=1000-885
(dx2-190):6=115
dx2-190=115x6
dx2-190=690
dx2=690-190
dx2=500
d=500:2
d=250

e +e+e+e-270:9=3 x e
4e-30=3e
e=30
Proba:30+30+30+30-270:9=3x30
120-30=90 =>90=90

82+4x[f-3x(54+54:6)]=2x(256+163)
82+4x[f-3x(54+9)]=2x419
82+4x[f-3x63]=838
4x[f-189]=838-82
4x[f-189]=756
f-189=756:4
f-189=189
f=189+189
f=378

(19+gx3):(108:6-1x13)=5
(19+gx3):(18-13)=5
(19+gx3):5=5
19+gx3=5x5
19+gx3=25
gx3=25-19
gx3=6
g=6:3
g=2

Proba:
(19+2x3):(108:6-1x13)=5
25:5=5