5x + 8 = -3x + 16
add 3x to both sides, this gives you...
8x + 8 = 16
minus 8 from both sides, this gives you...
8x = 8
divide by 8 to get what x equals (must divide both sides), this gives you...
x = 1
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-5x+3(x+8)=16-2x
7x + 8 = 5x + 327x = 5x + 242x = 24x = 12hope this helps
The answer is -8.
x=12
y=-5x+8 the slope is -5.