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 ( 31+ )
Otras preguntas
In an oxidation-reduction reaction, the number of electrons lost is (1) equal to the number of electrons gained (2) equal to the number of protons gained (3) le
What is one promise you make when you become a United States citizen?
Which energy conversion must occur in an operating electrolytic cell? (1) electrical energy to chemical energy (2) electrical energy to nuclear energy (3) chemi
what are the functions of Holloware
Under our Constitution, some powers belong to the federal government. What is one power of the federal government?
the band members sold 316 juice drinks for a fundraiser. they sold 52 more grape drinks than strawberry drinks. how many of each type of juice drink did they se
Which two earth layers are separated by the moho boundary?
Which statement describes a reversible reaction at equilibrium? (1) The activation energy of the forward reaction must equal the activation energy of the revers
Before he was President, Eisenhower was a general. What war was he in?
Which ion has the smallest radius? (1) O2- (2) S2- (3) Se2- (4) Te2-
