berkeleystir berkeleystir

01-04-2019
Mathematics

contestada

solve the system of equations using elimination/ combinations.
-2x - y= -4
x+ 2y = 5

Respuesta :

LammettHash LammettHash

01-04-2019

If [tex]-2x-y=-4[/tex] and [tex]x+2y=5[/tex], notice that

[tex](-2x-y)+2(x+2y)=-4+2\cdot5\implies3y=6\implies y=2[/tex]

Then

[tex]x+2\cdot2=5\implies x=1[/tex]

Answer Link

Otras preguntas

In what way did the fourth crusade lead to the decline of the byzantine empire

Emily works at a concession booth for summer sports. Hotdogs are $1.50 and sodas are $0.50. At the end of the night she made a total of $78.50. To replenish her

The atomic number of a nuclide that undergoes alpha decay _____. increases by 2 increases by 4 decreases by 2 decreases by 4

Which of the following structures consists mainly of white matter? Corpus callosumCerebral cortexThalamusCaudate nucleusBroca area

Can you help me with my math homework

Two polygons are similar. The perimeter of the smaller polygon is 48 centimeters and the ratio of the corresponding side lengths is 2/3 . Find the perimeter of

write an equation in slope-intercept form when the y-intercept is 0 and the slope is -4

Jose traveled 315 miles in 7 hours. Based on this rate, how many miles did Jose travel in one hour?

A soccer field is 50 yards wide and 60 yards long. If a person walks across the field along the diagonal instead of walking the length and width of the field, h

am I right please help asap thank u finance is the subject