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

A sentence that asks a question ends with a period. True False

A car starts from rest and travels for 4.0s with a uniform acceleration of + 1.3m/s^2. The driver then applies the brakes, causing a uniform acceleration of - 1

-15p+32p please awnser its rsm hw

1.07 x 104 -3.38 × 10³

(1) When we call someone “pig” or “swine,” we do not mean it as a compliment. (2) But pigs do not deserve to be used as a symbol for an insult. (3) They are pro

Cuanto vale la y en matemáticas

There are two temples, one on each bank of a river, just opposite to each other. One is 54m high. From the top of this temple angle of depression of the top and

1.07 x 104 -3.38 × 10³

There are two temples, one on each bank of a river, just opposite to each other. One is 54m high. From the top of this temple angle of depression of the top and

Cuanto vale la y en matemáticas