This excerpt is from a letter written by a Union
soldier to his wife at the start of the Civil War.
Read it and answer the questions.
What does the underlined sentence mean?
Ballou is saddened by the war.
Ballou is willing to die for the Union.
Ballou is willing to die for the Confederacy.

where is the sentence at?

when completing a research project

explanation:

x=4, y=4

step-by-step explanation:

y=2x-4;

x+2y=12

we can use substitution since the first equation is solved for y

where ever you see y in the second equation, replace it with 2x-4

x + 2(2x-4) = 12

distribute the 2

x+4x-8 = 12

combine like terms

5x-8=12

add 8 to each side

5x-8+8=12+8

5x=20

divide by 5

5x/5 = 20/5

x =4

we still need to solve for y

y = 2x-4

we know x =4

y = 2(4) -4

y = 8-4

y=4