Mathematics

Question

If (−3.5, y) is a solution to the equation 2x − 5y = 10, what is the value of y?

a) -3.4
b) 13.75
c) -0.6
d) -3.75

1 Answer

  • 2x - 5y = 10
    2(-3.5) - 5y = 10
    -7 - 5y = 10
    +7          +7
         -5y = 17
          -5     -5
            y = -3.4
    The value of y is equal to A. -3.4.
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