Diketahui 5(x+3)-25=3(4x-1).nilai x-1 adalaha.-3b.-2c.2d.3​

jawaban:

1.  m = 2
    y – y1 = m ( x – x1)
    y – (-5) = 2 ( x – (-4)
    y + 5   = 2 ( x + 4)
    y + 5   = 2x + 8
    y – 2x   = 8-5
    y – 2x = 3

2. m = 3
    y + 7 = 3 (x – 1)
    y + 7 = 3x – 3
    y – 3x = -3 + 7
  y   – 3x = 4

jawaban:

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