Question

[49-(6x6-15)+7]=
54+{16-[(4x4-10)+3]}=
15+{6+[(3x8-21)+2]}=
{12+[8x(19-5)-10]}=

help ksks(dando 20 pontos!^^)​

Answer 1

[49-(6.6-15)+7]=

[49-(36-15)+7]=

[49-21+7]=

35„

54+{16-[(4.4-10)+3]}=

54+{16-[6+3]}=

54+{16-9}=

54+7=

61„

15+{6+[(3.8-21)+2]}=

15+{6+[3+2]}=

15+{6+5}=

15+11=

26„

{12+[8.(16-5)-10]}=

{12+[8.11-10]}=

12+78=

90„