lexicook0915
lexicook0915
25-11-2016
Mathematics
contestada
Solve for x?
2x + y = 7
x - y = 5
Respuesta :
symantha777
symantha777
25-11-2016
x=4 because the y cancel out and all your left with is 3x=12 the you divide by 3 and get 4
Answer Link
Аноним
Аноним
25-11-2016
given 2x+y=7...1
x-y=5...2
put x=5+y in 1
2(5+y)+y=7
10+2y+y=7
3y=-3
y=-1
x=5+y
=5-1
=4
Answer Link
VER TODAS LAS RESPUESTAS ( 53+ )
Otras preguntas
How is the relationship between Macbeth and Lady Macbeth shown in act 1 scene 7? What quotes show this?
Why did the Mughal empire decline earlier than the Ottoman Empire
Mark tossed six balls
What expression is equivalent to x(x+4)+6(x+)
which statement accurately describes lines of longitude on a map
Which of the following is an example of an economic model? A. Government financial policy to encourage economic growth. B. Curve showing maximum quantities of
What are the codes of chivarly loyalty
it is___________ to take prescription drugs that have been prescribed for another person
. List five (5) effects alcohol has on the body’s central nervous system
Divide write in simplest form 1/8 ÷ 1/2=
