Solve the system of equations using Substitution

8x + 4y = 12
y = -2x + 3

Step-by-step explanation:

System of Linear Equations entered :

 [1]           8x+4y=12

 [2]           y=-2x+3

Equations Simplified or Rearranged :

  [1]    8x + 4y = 12

  [2]    2x + y = 3

Solve by Substitution :

Solve equation [2] for the variable  y  

 [2]    y = -2x + 3

Plug this in for variable  y  in equation [1]

  [1]    8x + 4•(-2x+3) = 12

  [1]    0 = 0 =>  Infinitely many solutions

too hard the other guy did it

step-by-step explanation:

isaiah walks 3 miles due north, turns and then 5 miles due east. how far is he from his starting point?

a^2 + b^2 = c^2

let c = distance from starting point.

(3)^2 + (5)^2 = c^2

9 + 25 = c^2

34 = c^2

sqrt{34} = sqrt{c^2}

sqrt{34} = c