Question

1+[2×(1+c)-59]×9=10 help fast

Answer 1

1+[2×(1+c)-59]×9=10
[2×(1+c)-59]×9=10-1
[2×(1+c)-59]×9=9
2×(1+c)-59=9:9
2×(1+c)-59=1
2×(1+c)=1+59
2×(1+c)=60
1+c=60:2
1+c=30
c=30-1
c=29