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38 votes
38 votes
Rewrite the equation below so that it does not have fractions.

3/4x-5=3/8

Do not use decimals in your answer.

User Julien Poulin
by
2.9k points

2 Answers

19 votes
19 votes

Final answer:

To eliminate fractions from the equation 3/4x - 5 = 3/8, multiply every term by the least common denominator, which is 8. This results in the equation 6x - 40 = 3. Solving for x gives x = 43/6.

Step-by-step explanation:

To rewrite the equation 3/4x - 5 = 3/8 without fractions, we need to find a number that can be used to eliminate the fractions by multiplication. The least common denominator (LCD) for both 4 and 8 is 8. Multiplying each term of the equation by 8 will remove the fractions. The equation becomes:

  • (8) * (3/4x) - (8) * 5 = (8) * (3/8)
  • 2 * 3x - 40 = 3
  • 6x - 40 = 3

Next, add 40 to both sides to isolate the term with the variable:

  • 6x - 40 + 40 = 3 + 40
  • 6x = 43

Finally, divide by 6 to solve for x:

  • 6x / 6 = 43 / 6
  • x = 43/6

The equation without fractions is 6x - 40 = 3, and the solution for x is 43/6.

User Sergiu Damian
by
3.3k points
10 votes
10 votes

Answer:

x=

6

43

Step-by-step explanation:

pasos

4

3

x−5=

8

3

Agrega 5 a ambos lados.

4

3

x=

8

3

+5

Convertir 5 a la fracción

8

40

.

4

3

x=

8

3

+

8

40

Como

8

3

y

8

40

tienen el mismo denominador, sume sus numeradores para sumarlos.

4

3

x=

8

3+40

Suma 3 y 40 para obtener 43.

4

3

x=

8

43

Multiplica los dos lados por

3

4

, el recíproco de

4

3

.

x=

8

43

×(

3

4

)

Multiplica

8

43

por

3

4

(para hacerlo, multiplica el numerador por el numerador y el denominador por el denominador).

x=

8×3

43×4

Realiza las multiplicaciones en la fracción

8×3

43×4

.

x=

24

172

Reduzca la fracción

24

172

a su mínima expresión extrayendo y anulando 4.

x=

6

43

User Tanaka Mawere
by
2.6k points