Question

{[25:(3xX-4)+40]:15+3}-5=1

Answer 1

{[25:(3*x-4)+40]:15+3}-5=1

[25:(3*x-4)+40]:15+3=6

[25:(3*x-4)+40]:15=3

25:(3*x-4)+40=45

25:(3*x-4)=5

3*x-4=5

3*x=9

x=3

sper că te-am ajutat. o zi frumoasa

Answer 2

{[25:(3•x-4)+40]:15+3}=6

[25:(3•x-4)+40]:15+3=6

[25:(3•x-4)+40]:15=9

[25:(3•x-4)+40]= 135

25:(3•x-4)+40=135

25:(3•x-4)=96

3•x-4=96•25

3•x-4=2400

×-4=800

x= 795