Hersheylover Hersheylover
  • 18-12-2014
  • Mathematics
contestada

What is the substitution of
Y=6x–11
-2x–3y=-7

Respuesta :

luana
luana luana
  • 18-12-2014
[tex] \left \{ {{y=6x-11} \atop {-2x-3y=-7}} \right. \\\\Subtitute\ first\ equation\ to\ second:\\\\-2x-3(6x-11)=-7\\-2x-18x+33=-7\\-2x-18x=-7-33\\-20x=-40\ \ \ \ \ |:-20\\x=2\\\\y=6\cdot2-11\\y=12-11\\y=1\\\\ \left \{ {{y=1} \atop {x=2}} \right. [/tex]
Answer Link

Otras preguntas

Which of the binomials below is a factor of this trinomial? -2x^2-16x+40
What percent is 12 out of 40
PLEASE HELP! BRAINLIEST! So desperate
Which statement is true?A. Opinions can be scientifically tested.B. Scientific theories are absolute and cannot be changed.C. Scientists have learned all they’l
What is the most important factor in maintaining a high credit score? Establishing credit early Maintaining a variety of credit types Making payments on time
Joseph lives in a country that lacks basic social infrastructure. Moreover, the banking system is not managed properly. The level of education is low. In which
what do scientists call an orderly pattern of change over time
Under a dilation, the point (6, 18) is moved to (3,9). What is the scale factor of the dilation?
Please help! Simplify the complex fractions.​
Validation is sometimes more important than fixing someone else's problems. A. True B. False