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Solve each system by substitution:
12x+3y=8
y=-4x-1
and if you know any sites where I can just input the equation and it fixes it then that would be equally helpful because I am dimwitted


Sagot :

Answer:

[tex]12x + 3(4x - 1) = 8 \\ 12x + 12x - 3 = 8 \\ 24x = 8 + 3 \\ x = \frac{11}{24} = 0.4[/tex]

Answer:

No Solution / NS

Step-by-step explanation:

Plug in the bottom equation into the top!

12x + 3(-4x-1) = 8 | The bottom equation is replacing the y on the top equation

Then solve it!

12x - 12x - 3 = 8

     -3 = 8

        NS