Marinavina23
Marinavina23
02-02-2016
Mathematics
contestada
7x+6y=21
X+3y=-12 what is the answer
Respuesta :
Panoyin
Panoyin
02-02-2016
7x + 6y = 21 ⇒ 7x + 6y = 21
1x + 3y = -12 ⇒ 2x + 6y = -24
5x = 45
5 5
x = 9
x + 3y = -12
9 + 3y = -12
- 9 - 9
3y = -21
3 3
y = -7
(x, y) = (9, -7)
Answer Link
VER TODAS LAS RESPUESTAS ( 65+ )
Otras preguntas
Which solution when mixed with a drop of bromthymol blue will cause the indicator to change from blue to yellow? (1) 0.1 M HCl (3) 0.1 M CH3OH (2) 0.1 M NH3 (4)
Which compounds are classified as electrolytes?(1) alcohols (2) alkynes (3) organic acids (4) saturated hydrocarbons
What is the means-to-MAD ratio of the two data sets, expressed as a decimal? Data set Mean Mean absolute deviation (MAD) 1 10.7 2.4 2 13.7 2.5
Which subatomic particle has a negative charge? (1) proton (3) neutron (2) electron (4) positron
Can Jet Fuel burn through Steel Pipes?
If I subtract 123,456,789,123 - 456,908,123,567,435 = ? what is the answer
why did the government give land grants to railroad companies
Rome fell in the year 476 to.a German tribe named
Determine whether the formula describes y as a function of x. Explain your reasoning. (2 points) y = 9x + 1
can somebody PLEASE help me with English Which sentence uses a verb that agrees with its subject? A. Brazil, of all the South
