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 ( 58+ )
Otras preguntas
How many lines of symmetry does a heart have
which net work has a more facilities in today in india? (present day)
One correct answer is an example of _____________ ______________ _____________ and no single right answer is _______________ _________________ ___________
what's the pattern for _, 8570 _, 85.7, 8.57
Andy makes a model of a new tool that is 0.24 meter long. his model is 10 times as large as the actual too. how big is the model
The mystery first name of a student in the class does not begin with A, B, C, D, E, or F. the names first letter comes before S, T, U, V, and W. the students wh
three gallons of paint are used to paint 16 wooden signs.how much paint did each sign use
What is the slope of the line given by the following equation? Give an exact number. -13x 5y=-7
I'm giving 50 points to who ever can give me the right answer, and can explain how to do it. I'm disparate. This is the only one I can't figure out. 3x+2x-x+2
5th grade fiction domain
