Respuesta :
Answer:
x = 12/7
Step-by-step explanation:
in order to solve this formula x/4 + x/3 = 1
solution
x/4 + x/3 = 1
the first step to do is to take lcm of the left hand side
[3(x) + 4(x)] /12 = 1
[4x +3x]/ 12 = 1
7x/12 = 1
cross multiply
7x/12 = 1
7x = 12 × 1
7x = 12
divide both sides by 7
7x/7 = 12/7
x = 12/7
Answer:
x = 12 / 7
x = 1 5/7
Step-by-step explanation:
To solve the given formula, we must make use of the concept of LOWEST COMMON MULTIPLE. (LCM)
The LCM of 4 and 3 is 12
Since the LCM of the denominator is 12, we Multiply through by 12
Therefore:
(12) * x / 4. (12) * x / 3. = 12 * 1
3x + 4x = 12
7x = 12
Divide through by 7 to make x the subject of the expression.
7x/7 = 12/7
x = 12 / 7
To simplify further, x = 1 5/7