Răspuns :
Răspuns:
a)x+(2*5)=80
x+10=80
x=80-10
x=70
b)(3*x+2*x)*9=45
3*x+2*x=5
x(3+2)=5
×*5=5
x=1
Răspuns:
a) x+10=80/-10
x=70
b) (3x+2x)*9=45
5x*9=45
45x=45/:45
x=1
Răspuns:
a)x+(2*5)=80
x+10=80
x=80-10
x=70
b)(3*x+2*x)*9=45
3*x+2*x=5
x(3+2)=5
×*5=5
x=1
Răspuns:
a) x+10=80/-10
x=70
b) (3x+2x)*9=45
5x*9=45
45x=45/:45
x=1