01-12-2016
Mathematics

contestada

solve for x 5 (x+2)=8x+20

solve for x 5 x28x20 class=

Respuesta :

xman7373 xman7373

01-12-2016

Distribute the 5 outside the parentheses into the parentheses.
5(x+2)=8x+20
5x+10=8x+20
Bring x to one side, other numbers to another
5x+10=8x+20
-8x -8x
-10 -10
-3x=10
divide by -3
x=-10/3
approximately -3.33333333

Answer Link

01-12-2016

First, Distributive Property

5 (x+2)=8x+20
5x+10=8x+20 *Move constants and variables to opposite sides*
-5x -5x
-----------------
10=3x+20
-20 -20
-------------
-10=3x
----- -----
3 3

x= -10/3

Answer Link

Otras preguntas

Solve the following. 2x^2-7x-4/6x^2+7x+2<0 Can someone explain how to solve this.

A capacitor consists of two parallel conducting plates, each of area 0.4 m2 and separated by a distance of 2.0 cm. Assume there is air between the plates. While

Which best describes the basic principle of socialism? A There should be no government B All wealth should be given out equally C The government should contro

Write the following dates out in words. EXEMPLE 4/9/1682: la fondation de la Louisiane par les Français le quatre septembre mil(le) six cent quatre-vingt-deux/

Mention the name of the first radio station in Ghana.

write a paragraph of about 200 words explaining some of the problems u face when your listen to a lecture.

Find the area of the region bounded by y=1/x^2,y=4, and x=5. Use dy to differentiate and/or integrate.

writie any assay about challenges of teaching mathematics on 21st century

The solution of this equation has an error. Which of the following steps has an error? Step 1: -2x + 8 - 3x = 7 Step2:–5x+8=7 Step3:-5x = 15 Step4: x = -3 O Ste

Write the quadratic equation whose roots are 2 and -4 and whose leading coefficient is 2