6x - 10=x- 20
8x- 4= - 15
3x - 50 = 8x +40
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Step-by-step explanation:
6x-10=x-20
6x-x=-20+10 ( right side +x so left side is -x ,(left side -10 so right side +10)
5x=-10x=-10/5
=(-2)
8x-4=-15
8x=-15+4
8x=-11
x=-11/8
x=1⅜
3x-50=8x+40
3x-8x=40+50(same as 1st question)
-5x=90
x=90/-5
x=18
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