SOLUTION: If (x,-4) is a solution to the equation 5x-4y=-10, what is the value of x?

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Question 999215: If (x,-4) is a solution to the equation 5x-4y=-10, what is the value of x?
Found 2 solutions by MathLover1, mananth:
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

If (x,-4) is a solution to the equation 5x-4y=-10, than the value of x is:
5x-4%28-4%29=-10
5x%2B16=-10
5x=-10-16
5x=-26
x=-26%2F5
x=-5.2

Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!

Since (x,-4) is a solution to the equation 5x-4y=-10,
substitute y =-4
5x-(4)(-4) = -10
5x+16=-10
5x = -26
x=-26/5`