Răspuns :
1.) x+358=500
x=500-358
x=142
2.) a+b+c=703
a=149
b=149+157=306
c=703-(149+306)=703-455=248
x=500-358
x=142
2.) a+b+c=703
a=149
b=149+157=306
c=703-(149+306)=703-455=248
1)a+358=500
a=500-358
a=142
2)a+b+c=703
a=149
b=157+a
c=?
b=157+149
b=306
a+b+c=703
149+306+c=703
453+c=703
c= 703-453
c=250.
a=500-358
a=142
2)a+b+c=703
a=149
b=157+a
c=?
b=157+149
b=306
a+b+c=703
149+306+c=703
453+c=703
c= 703-453
c=250.