09-05-2016
Mathematics

contestada

Solve the following systems of linear equations. [3x+7y= -4 and 2x+5y= -3]

Respuesta :

apologiabiology apologiabiology

09-05-2016

eliminate
multiply first equatin by -2
mulitply second by 3 and add them

-6x-14y=8
6x+15y=-6
add them
y=2
sub

3x+7(2)=-4
3x+14=-4
minus 14
3x=-18
divide 3
x=-6
(-6,2)

Answer Link

Otras preguntas

describe how social activism could help fight poverty

17. did/ What / do/ in /yesterday?/you /the park A.What do they did yesterday? B. What did they do in the park yesterday? C, What they do in the park did yester

rationalize the denominator 2√7+√3/3√7-√3

Why can viruses not fit in any domain? How are they different from all other forms of Life? What would need to occur for viruses to be classified as "alive"?

You work for a Defense contracting company. The company develops software applications which perform intensive calculations in the area of Mechanical Engineerin

The xiohoid process is a form of artificial respiration True or false

what are two different ways to solve 257+438

WILL MARK BRAINLIEST!! Which would be the best argument to make against using fossil fuels for someone living in a coastal area? A. Deforestation will make the

Geometry, please answer question ASAP

Can someone help me please