Julio solved the equation as show below. He made a mistake and incorrectly concluded that the equation has no solution. What was Julio's mistake? What is the correct answer to the equation?

9514 1404 393

  incorrect use of the distributive property in line 2

  infinite solutions

Step-by-step explanation:

The second line of Julio's work should read ...

  -x +5x +30 = 4x +30

Julio incorrectly distributed the 5 over the contents of parentheses.

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Then the equation simplifies to ...

  4x +30 = 4x +30

  0 = 0 . . . . true for all x, infinite solutions

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

the slope of the line is 60

one point on the line is (40,10)

step-by-step explanation:

in the equation outside the parenthesis the equation always tells you the slope. in this case it is 60.

in the parenthesis is also says 40 which is x because it is near the x and 10 is y because it is near y.