Where the lines 4x + 3y =19 and 3x - 4y =8 intercept?

  (4, 1)

Step-by-step explanation:

The lines intersect at the point (4, 1). A graphing calculator shows this easily.

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Multiplying the first equation by 4 and adding 3 times the second equation gives ...

  4(4x +3y) +3(3x -4y) = 4(19) +3(8)

  25x = 100 . . . . eliminate parentheses, collect terms

  x = 4 . . . . . . . . .divide by 25

Substitute this into the first equation to get ...

  4·4 +3y = 19

  3y = 3 . . . . . . subtract 16

  y = 1 . . . . . . . . divide by 3

The point of intersection is (x, y) = (4, 1).

in the math equation 8 x 7 = 56, the 8 and the 7 are both factors of 56, since in this lesson we will use square tiles to figure out the factors of a whole find as many different arrays as you can, but follow one important rule: all the rows must have the i can make two rows of nine, so 2 and 9 are both factors of 18.

step-by-step explanation: