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

How did Andrew Jackson show resilience and toughness thoroughout his life?

what is the distributive property for 8 x 71?

What becomes increasingly obvious to Winston as he reads the book O’Brien gave him?

Which of these is likely to result in the most competition? a. organisms that live in different ecosystems b. organisms that use the same resource c. organisms

Jessica is making 2 loaves of banana bread. She needs 3/4 cup of sugar for each loaf. Her measuring cup an only hold 1/4 cup of sugar. How many times will Jessi

Suppose a bill has passed both the House and the Senate. It goes to the president at the beginning of the annual session of Congress. The president doesn't sign

Hypertension is NOT a type of cardiovascular disease.

A prescription drug advertisement uses a famous surgeon to tell the audience that this drug saves lives. What propaganda technique is being employed in this adv

What is 1/3 of a rectangle shaded

Which fraction is not equivalent to 16/24 A. 2/3 B. 5/8 C. 32/48 D. 4/6