Solve the system of equations by substitution. What is the solution for x?
2x + y = 1
4x + 2y = -2

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kangamango kangamango

03-01-2017
Mathematics

contestada

Solve the system of equations by substitution. What is the solution for x?
2x + y = 1
4x + 2y = -2

Respuesta :

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What value of x makes the equation true ? 4(2x-4)=16

apologiabiology apologiabiology · Answer 1 · 2017-01-03T16:24:13+01:00

apologiabiology apologiabiology

03-01-2017

subsituteion
solve for y
2x+y=1
minus 2x
y=1-2x
sub 1-2x for y

actualy, divide 2nd equation by 2
2x+y=-1
sub 1-2x for y
2x+1-2x=-1
1=-1
false

no solution
paralell lines

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Solve the system of equations by substitution. What is the solution for x? 2x + y = 1 4x + 2y = -2

Respuesta :

Otras preguntas

Solve the system of equations by substitution. What is the solution for x?
2x + y = 1
4x + 2y = -2