SOLUTION: if(x, -4) is a solution to the equation 4x

SOLUTION: if(x, -4) is a solution to the equation 4x - 5y =8, what is the value of x?

Question 119801: if(x, -4) is a solution to the equation 4x - 5y =8, what is the value of x?
Answer by jim_thompson5910(35256) (Show Source): You can put this solution on YOUR website!
Since we have the solution (x,-4), this means .

Start with the given equation

Plug in

Multiply

Subtract 20 from both sides

Combine like terms on the right side

Divide both sides by 4 to isolate x

Divide

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Answer:
So our answer is
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