thenaivecube
thenaivecube thenaivecube
  • 03-06-2018
  • Mathematics
contestada

Solve: 2x-3y=21 and -6x+2y=7 PLEASE HELP

Respuesta :

musicnotesloves
musicnotesloves musicnotesloves
  • 03-06-2018
the first one is : x=3/2y+21/2
the second one is: 
x=1/3y+−7/6
Answer Link
vidalmari6p99qfk
vidalmari6p99qfk vidalmari6p99qfk
  • 03-06-2018

y= 10  

2x-3y=21

2x=21+3y

x= (21/2 +3/2 y)


-6(21/2+3/2y)+2y=7

126/2+18/2y+2y=7


    sorry I need to leave now

      




Answer Link

Otras preguntas

Write the equation of the given line in slope-intercept form. A y = 3 x - (1) B y = 3x + (1) C y = (-3) x - (1) D y = (-1/3 x ) - 1
Subtract. 405,000,000−1.7×10^8 (A) 2.35 (B) 2.35×10^7 ​(C) 2.35×10^8 ​ (D) ​ 2.35×10^9 ​
Miguel is making an obstacle course for field day. At the end of every sixth of the course,there is a tire. At the end of every third of the course, thre is a c
How to do i solve it
In seventeenth century England, the rise in population generated an increased demand for which of these?
What is the value of any number or variable to the zero power
Write the complex’s conjugate of the complex number - 2 +
Explain how the Haber process for producing ammonia is a good example of Le Châtelier’s principle.
What is the missing number for 7+1=?-2
Who presents the newly elected Speaker of the House of Representatives?