Question

Afla numerele necunonoscute: x+243=802, y×6=78,a-309=391,b÷4=207.

Answer 1

Răspuns:

x+243=802, x=802-243   x=559

y×6=78, y=78:6  y=13

a-309=391, a=391+309  a=700

b÷4=207. b=207x4 b=828

Explicație pas cu pas:

Answer 2

Răspuns:

x+243=802

x=802-243

x=559

y×6=78

y=78:6

y=13

a-309=391

a=391+309  

a=700

b÷4=207

b=207·4

b=828