Question

Afla termenul necunoscut

[3+4x (6xa -1) ]:47+9=10

Answer 1

[3+4*(6a-1)]:47=10-9

[3+4*(6a-1)]:47=1

[3+4*(6a-1)]=1*47

3+4*(6a-1)=47

4*(6a-1)=47-3

4*(6a-1)=44

6a-1=44:4

6a-1=11

6a=11+1

6a=12

a=12:6

a=2

Answer 2

[3+4×(6×a-1)]:47+9=10
(3+24a-4):47=10-9
(3+24a-4):47=1
3+24a-4=1×47
3+24a-4=47
24a=47-3+4
24a=48
a=48:24
a=2