Zareya Zareya
  • 24-07-2017
  • Mathematics
contestada

Solve the system of equations by substitution. x + y = x + 7y = 8

Respuesta :

W0lf93
W0lf93 W0lf93
  • 02-08-2017
Let us start first writing the equation separately: Equation 1: x+y=8 Equation 2: x+7y=8 Let us subtract Equation 1 from Equation 2 x+y=8 -(x+7y)=8 ------------------ 0 -6y=0 6y=0 y=0 Now we have y=0, let us put this in any of the equation 1 or equation 2 Let us first put it in Equation 1 x+y=8 x+0=8---putting y value as y=0 x=8 Now Equation 2: x+7y=8 x+7(0)=8 x+0=8 x=8
Answer Link
Lebrony23
Lebrony23 Lebrony23
  • 06-11-2018

Answer:

1 and 1

Step-by-step explanation:


Answer Link

Otras preguntas

The combination of units written kg·m/s2 can be used for which of the following? A. acceleration B. mass C. force D. weight
Janes quiz scores: 82 64 73 91 85 what is the mean ?
The combination of units written kg·m/s2 can be used for which of the following? A. acceleration B. mass C. force D. weight
simplify: -3(4×-4) 7x(3+4)
how do you simplify 681
Write 314,207 in expanded form
Please help I don't know what to do for number 40
Which of the following elements is not necessary to prevent value conflicts in the work place? A. ToleranceB. ConsiderationC. AvoidanceD. Honest communication
find the cube root of 740
Toms home is 1800 m from his school. One morning he walked part of the way to school and then ran the rest. If it took him 20 minutes or less to get to school,