5(2x-6)+20=10
Distribute
(5)(2x)+(5)(-6)+20=10
10x-30+20=10
Combine like terms (10x)+(-30+20)=10
10x-10=10
Add 10 to both sides
10x-10+10=10+10
10x=20
x = 20/10
x= 2
I hope that's help !
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