Răspuns:
a÷8+(36÷6-32÷8)=7
a÷8+(6-4)=7
a÷8+2=7
a÷8=7-2
a÷8=5
a=5×8
a=40
verificare:
40÷8+(36÷6-32÷8)=
40÷8+(6-4)=
5+2=7(adevarat)
(4×8+8÷a)+6×3÷9-(16-4×4)=72÷9+5×6
(32+8÷a)+6×3÷9-(16-16)=8+30
(32+8÷a)+18÷9-0=38
(32+8÷a)+2-0=38
(32+8÷a)+2=38
32+8÷a=38-2
32+8÷a=36
8÷a=36-32
8÷a=4
a=8÷4
a=2
Verificăm:
(4×8+8÷2)+6×3÷9-(16-4×4)=72÷9+5×6 (32+4)+18÷9-(16-16)=8+30
36+2-0=38
38-0=38
38=38( adevarat)
Sper ca te-am ajutat
