keeykeey22 keeykeey22

02-03-2017
Mathematics

contestada

use the elimination method to solve the system of equations.choose the correct ordered.
4x+7y=60
-4x+7y=-4

Respuesta :

wolf1728 wolf1728

03-03-2017

A) 4x+7y=60
B) -4x+7y=-4
Adding the 2 equations
14y = 56
y = 4

A) 4x+7*4=60

A) 4x+28=60
A) 4x = 32
x = 8

Answer Link

Otras preguntas

what is the answer plz help 7.04 Q9

What is the Sea level

word problem plz help thanks fam 7.04

Any literature student?? I need help

Use the difference of two squares to find the product of 22 and 18.

Hi can someone please help Which expressions are completely factored? 18x^4−12x^2=6x(3x^3−2x) 24x^6−18x^5=6x^5(4x−3) 12x^5+8x^3=2x^3(6x^2+4) 20x^3+12x^2=4x^2(5x

When 27x2z/-3x2z6 is completely simplified, the exponent on the variable z is

Even if a health care professional is employed by an agency that delivers orthodox health care, what general holistic concepts can be applied to improve patient

What is the set of all numbers, including all rational and irrational numbers.

which is the rational number that is neither a positive nor negative?