Answer:
x = -10
Explanation:
8x (-10x)= 10x +20 (-10x)
subtract 10x from both sides of the equation
-2x/-2 = 20/-2
divide both sides by -2
x= -10
-8x+10x+20=0
2x+20=0
2x=0-20
2x=-20
x=-20/2
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