16
The number is 6. (6 + 1) x 3 = 21 - 6 = 15
That would be -4 .
300
sum
50
They make a rational number.
3(X + 3) = X + 23 3X + 9 = X +23 2X = 14 X = 7
28
That would be -4 .
22
300
they added more life boats to boat regulations
It depends on ur # let's just say it was 1 then u do this :1 times 3=3+5=8 if original #=1 answer I s 8
it means adding that much more value to the original number
It will be lowered with the result that the steel becomes more brittle.
The engine will produce more exhaust.
sum
50