robaynosd
robaynosd
27-01-2017
Mathematics
contestada
-7x-2y=-13 what is the
x-2y=11
Respuesta :
wolf1728
wolf1728
27-01-2017
A) -7x-2y= -13
B) x-2y= 11
Multiply equation B by -1
A) -7x -2y = -13
B) -x +2y = -11
Add the equations
-8x = -24
X = 3
Putting X =3 into Equation B
B) -3 + 2y = -11
2y = -8
y = -4
Answer Link
VER TODAS LAS RESPUESTAS ( 49+ )
Otras preguntas
Solve, using the substitution method. y = 2x + 6 3x – y = 6 Question 4.4. Solve, using the substitution method. y– 2x = 8 16 + 4x = 2y
What is the major ethnic group in Western Russia? Anglo Kurd Germanic Slavic
(5x)^2 x^3 simplify this expression
how did the United States acquire new territory and expand trading in the pacific
according to Malthus, what factors limited population growth?
which best describes the influence of Isaac Newtons theory of universal gravitation
what is the major difference between hinduism and buddhism?
Help: In Federalist No. 51, James Madison's concerns about a powerful legislative branch point to his belief in A) Federalism B) Bicameralism C) Direct Democrac
angles ∆RST are in the ratio 2:4:9 what are the measures of the angles
How do single-celled decomposers get energy? A. They make their own food. B. They use a process called budding, C. They feed on living organisms. D. They break
