Madi131
Madi131 Madi131
  • 02-03-2017
  • Mathematics
contestada

Solve the system of linear equations using substation

y=2x+5
y=3x-1

Respuesta :

Аноним Аноним
  • 02-03-2017
Substitution: 3x-1=2x+5
                     x=6
                     y=12+5=17
Answer Link
cher
cher cher
  • 02-03-2017
Equation 1)  y=2x+5
Equation 2)  y=3x-1

Rearrange both equations so that the variables are both on the same side of the equal sign.

1) y=2x+5
1) -2x+y=5

2)  y=3x-1
2)  -3x+y=-1


1) -2x+y=5
2) -3x+y=-1

Subtract equations.

x=6

Plug in 6 for x in equation number 1.

y=2x+5

y=2(6) +5

y=12 + 5

y=17

~Hope I helped!~
Answer Link

Otras preguntas

Who confirms Supreme Court nominees?
1Select the correct answer.Which document is referred to as the “supreme law of the land”?A. US ConstitutionB. Bill of RightsC. Declaration of IndependenceD. Fi
What is the surface area of this wedge?
ASAP what is the solution of the system of equations explain. y=1/2 x+4 2y+4=x A. Infinitely many; the lines are the same. B. There is no solution; the lines a
Solve: √ (x²- 14 + 49) = x - 7
Which was not part of Karl Marx’s beliefs according to das capital or the communist manifesto
If the sides of your equilateral triangle are each 3 inches and you are wanting to scale to the larger triangle then... would you multiply the 3 by a whole num
The non-living components of an ecosystem are factors.
Round the number 45,812 to the hundreds place
In △ABC the points M and N belong to the sides AC and AB respectively. AM= 1/3 AC, AN= 1/3 AB, BC=15. Find MN