4x + 3y = 6
-4x + 2y = 14
Solve the system of equations.

x = -1.5    y = 4

Step-by-step explanation:

4x + 3y = 6

-4x + 2y = 14                  Add both equations together

       5y = 20                  Divide both sides by 5

        y = 4

Plug this into one of the original equations

4x + 3(4) = 6                Multiply

4x + 12 = 6

     -12  - 12                  Subtract 12 from both sides

4x = -6                         Divide both sides by 4

x = -1.5

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the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation:

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