haleybarger357
haleybarger357 haleybarger357
  • 12-10-2020
  • Mathematics
contestada

what does x equal in the equation [tex]\frac{3}{5}x- \frac{1}{4}x=7\\[/tex]

Respuesta :

mathstudent55
mathstudent55 mathstudent55
  • 12-10-2020

Answer:

[tex] x = 20 [/tex]

Step-by-step explanation:

[tex] \frac{3}{5}x - \frac{1}{4}x = 7 [/tex]

The LCD is 20, so multiply both sides of the equation by 20.

[tex] 20(\frac{3}{5}x - \frac{1}{4}x) = 20 \times 7 [/tex]

[tex] 4 \times 3x - 5 \times x = 140 [/tex]

[tex] 12x - 5x = 140 [/tex]

[tex] 7x = 140 [/tex]

[tex] x = 20 [/tex]

Answer Link

Otras preguntas

What is the area, in square inches, of the trapezoid below? 6.2 in 17.7 in 12.6 in
How many genders are there?
With which statement did Carolyn Cole, author of
pls anwser this!!!! Soldiers, Sailors and Airmen of the Allied Expeditionary Force! You are about to embark upon the Great Crusade, toward which we have striven
8. Why did the May 4th Movement occur?
(6.15x+0.24y)÷1.5+5.9x−1.6y Help plz
I need to write about one case around the world. What are some interesting cases to write about?
how did the conflict between goarge whashingon patriot soldiers and gret britins hessians end on 1776
Use the theme you just selected and write a paragraph in which you explain how Eggers uses sequence of events, conflicts, and the social and cultural context to
Plz help, will mark brainiest solve the proof