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Anonymous
It is a linear equation in a single unknown variable, x.
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-8x + 4 = -13x - 1
Add '13x' to both sides
Hence
5x + 4 = -1
Subtract '4' from both sides
5x = -5
Divide both sides by '5'
x = -1
lenpollock ∙
(1, 1)
x=1
(1, -1)
8x-1 = -4x+23 8x+4x = 23+1 12x = 24 x = 2
x=1, y=1