Tarrants156
Tarrants156
15-07-2014
Mathematics
contestada
Help please 2y-5x=-1, x=2y+5
Respuesta :
Аноним
Аноним
15-07-2014
[tex]\left\{\begin{array}{ccc}2y-5x=-1\\x=2y+5\end{array}\right\\\\substitute\\\\2y-5(2y+5)=-1\\2y-10y-25=-1\\-8y=-1+25\\-8y=24\ \ \ \ /:(-8)\\y=-3\\\\x=2\cdot(-3)+5=-6+5=-1\\\\Solution:x=-1;\ y=-3[/tex]
Answer Link
VER TODAS LAS RESPUESTAS ( 46+ )
Otras preguntas
the scientific notation of 47
The answer to 15ft long and 8ft wide
mr. patterson ordered 3 loads of dirt for every 5 pear trees. write these three ratio forms in the box: 3 to 5, 3:5 and 3/5. when asked to write a ratio in t
How is the version of Macbeth created by Orson Welles similar to the original Macbeth?
A meal of a chicken sandwich and some pasta salad had 120 grams of carbohydrates. The pasta salad had 30 grams more than twice the grams of carbohydrates in the
A human hair is approximately 50 um in diameter. Express this diameter in meters.
when should you question a source's credibility? a. when the source has been translated from another language b. when the arguments made by the author of the so
What is the verb is this sentence... Some snakes will squeeze their victims.
25/14 write as a mixed number
Mario hauled 64 containers of oil that each held 73 gallons to a local distributor. The distributor poured all the oil in equal amounts into 32 new containers.
