Tahjalyn Tahjalyn

18-11-2014
Mathematics

contestada

x - (4x - 7) = 5x - (x + 21)

Respuesta :

18-11-2014

[tex]x-(4x-7)=5x-(x+21)\ \ \ \ | omit\ the\ brackets\\\\ x-4x+7=5x-x-21\\\\ -3x+7=4x-21\ \ \ | subtract\ 4x\\\\ -7x+7=-21\ \ \ | subtract\ 7\\\\ -7x=-28\ \ \ | divide\ by\ -7\\\\ x=4[/tex]

Answer Link

Otras preguntas

The velocity of a ball as it is thrown up is 20 meters/second. It attains zero velocity after 3.5 seconds. What is the average acceleration of the ball during i

Explain how you can use a model to find 6×17

Write the fraction 16/24 in simplest form.

Use the distributive property of division to sokve 54×8

can a quadrilateral have 4 obese angles.

what is 1591 x 5672 please help

What branch of government has the responsibility for settling disputes over meaning in the constitution

a teacher and 10 students are to be seated along a bench in the bleachers at a basketball game. In how many ways can this be done if the teacher must be seated

Things that begin with the same sound as net

Within the Kojiki, the names given to the deities show that they are a.Descriptive of the land and sea of their originationc.Give little to no description of wh