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 :

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

Answer Link

Otras preguntas

How many sex chromosomes do humans possess? a. 2 b. 22 c. 23 d. 46

An increase in temperature will effect vapor pressure by:

What tool is used to determine skin fold measurements?

Which elements qualify this poem as a Shakespearean sonnet? Check all that apply, A)Three quatrains and one couplet B)Line of poetry with five metrical feet C)

HELP ME FAST!!!!!1!!1

Identify the oxidized substance and the reduced substance in the redox reaction. Mg(s)+Cl2(g)⟶Mg2+(aq)+2Cl−(aq) Which substance gets oxidized? Mg Cl2 Cl

A heterozygote is an individual with: a. a different paternal and maternal allele at a particular locus. b. the same paternal and maternal allele at a particul

3. Describe the risks of noise pollution and methods for minimizing it.

The DNA-binding proteins that recognize and accurately initiate transcription at specific eukaryotic promoter sequences are called: a. Enhancers. b. transcripti

Does US Military care if I have a pierced ears? But I haven’t worn for years just have a hole