Problema Solution
10.4.39
If the sum of a number and four
is tripled
,
the result is two
less than twice
the
number.
Answer provided by our tutors
Let 'x' represent the number.
3(x + 4) = 2x - 2
........
click here to see the equation solved for x
........
x = -14
Indeed:
3*(-14 + 4) = 3*(-10) = - 30
2*(-14) - 2 = -28 - 2 = 30
The number is -14.