11-11-2018
Mathematics

contestada

if 3x+2y=14 and 2x+y=7, then x+y=

Respuesta :

MargauxStrb MargauxStrb

11-11-2018

Out of the second equation y=7-2x
Into the first equation
3x+14-4x=14
14-x=14
X=0

Now fill back into the second
Y=7
So x+y is 7

Answer Link

Otras preguntas

Indexes of 2D lists are listed _ first and then _ .

The graph shows the depth of water, in feet, of a water tank over a certain amount of time, in minutes 7 9 Depth (in feet) 4 3 2 - 5 Water Tank 0 20 40 60 80 10

The people who know the most about how to create social justice are often the poor and oppressed? A) nationalism b) democracy c) capabilities d) human rights e)

46 *21 = with solution

Q2.Prove that... Really difficult Question! Please help

A gallon of paint covers 450 square feet. Patrick's Paint Shop painted 16,650 square feet of wall surfaces in one week. How many gallons of paint did they use t

For the demand function q = D(p)=√295-p, find the following. a) The elasticity b) The elasticity at p = 106, stating whether the demand is elastic, inelastic or

What substance is released when an antigen initiates an allergic reaction? Multiple choice question. a. Prostaglandins b. Allergens c. Histamine d. Autoantibodi

What is the theme of the passage The Golden Boys and their New Electric Cell

If Arp2/3 is mutated and nonfunctional, What will be most affected?