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

Which feature of a membrane describes whether molecules can cross the membrane? O A. Permeability O B. Polarity C. Construction O D. Thickness

Find the equation of a line perpendicular to y=−4x−1 that contains the point (−2,2). Write the equation in slope-intercept form.

A manufacturer has tested 11 lithium-ion batteries, and finds that their lifetime is 400 charge cycles with a standard deviation of 10. An engineer is testing a

using the 10% rule when studying trophic pyramids, if the autotrophs produce 100 Joules of energy, how much energy is passed on to herbivores? a. 1 Joule b. 10

A mineshaft has an ore elevator hung from a single braided cable of diameter 2.5 cm. Young's modulus of the cable is 10×10^10N/m2. When the cable is fully exten

Assume the random variable X is normally distributed with mean muequals50 and standard deviation sigmaequals7. Compute the probability. Be sure to draw a normal

What does Barbara frietchie do after the soldiers shoot at her flag?

Physical depreciation means

definition of evaluation in regards to business

A cohort study was designed to assess the impact of sun exposure on skin damage in beach volleyball players. During a weekend tournament, players from one team