What is the slope of a line that goes through the points (-3, 4) and (2, 8) ?
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x =
multiply all terms on both sides of the equation by the lowest common multiple of 3 and 8, that is 24
24 × = 24 ×
+ 2 × 24
16x = 3(x - 1) + 48
16x = 3x - 3 + 48
16x = 3x + 45
subtract 3x from both sides
16x - 3x = 45
13x = 45
divide both sides by 13
x =