marce2
marce2
14-05-2017
Mathematics
contestada
Equations by substitution
y=3x-7; 2x+4y=14
Respuesta :
FLORC
FLORC
14-05-2017
Let's plug in y=3x-7 into 2x+4y=14
2x+4 (3x-7)=14
Distribute
2x+12x-28=14
Add
14x-28=14
Add 28 to both sides
14x=42
Divide
X=3
Y=3 (3)-7
Y=9-7
Y=2
(3,2) A the solution is (3,2)
Answer Link
VER TODAS LAS RESPUESTAS ( 52+ )
Otras preguntas
can you work this out like a division 26.1 divided by 6
What is the ratio of 3.5 chicken stock to8 mixed veggies.
What is the answer 8d-10 for d= 4
Lights strung together in a line along a circuit would be an example of a __________ circuit.
if √5 is ≈ 2.236, find DE to nearest tenth. (AD=4, DB=5, ΔACB is right with CD perpendicular to hypotenuse AB, AE bisects angle CAD)
Who was arrested for casting an illegal ballot in an American presidential election? A. Susan B. Anthony B. Samuel Gompers C. Emmeline Pankhurst D. Frederic
What carol contains the line, "Star with royal beauty bright"?
How do Raymond's action changes squeaky's view to him ?
Which is greater 45/100 or 6/10? Please Answer :D?
Simplify each expression 2x+5y+7x=
