lulustar13 lulustar13

04-02-2019
Mathematics

contestada

Solve this equation using substitution.

{4x + y = −2}
{4x + 6y = 44}

Respuesta :

mathecoach mathecoach

04-02-2019

Answer:

4x + y = −2 --> 4x = -y - 2

4x + 6y = 44

Substitute 4x in the 2. equation.

(-y - 2) + 6y = 44

5y - 2 = 44

5y = 46

y = 9.2

4x = -9.2 - 2

4x = -11.2

x = -2.8

Answer Link

Otras preguntas

can you express 9/9 as a mixed number why or why not

Which best explains why Sunjata is considered an epic poem? a. It does not contain a hero b. It tells a long narrative story c. It contains many short poems d.

Read this excerpt from Narrative of the Life of Frederick Douglass, an American Slave. My Dear Friend: You remember the old fable of "The Man and the Lion," whe

is 14.5% equivalent to the decimal 14.5

Which statement describes the role of the organism indicated by the blue arrow in the food web? (2 points) alt= Producers bring energy into the ecosystem by mak

Ms. Velez will use x gray bricks and y red bricks to build a wall around her garden. Gray bricks cost $0.45 each and red bricks cost $0.58 each. She can spend u

Electron Lender or borrower? i need to know if these elements lend or borrow electrons. -sodium -phosphorus -potassium -oxygen -iodine -cesium -bromine -sulfur

jamal earned $5.00 walking his neighbor's dog for one week. he was given a 1/5 of the $5.00 at the beginning of the week and 1/5 in the middle of the week. how

can you express 9/9 as a mixed number why or why not

which synonym of the word look would be most effective in the following sentence