6x+3−8x=136x+3-8x=13
1
Simplify  6x+3−8x6x+3-8x  to  −2x+3-2x+3.
−2x+3=13-2x+3=13

2
Subtract 33 from both sides.
−2x=13−3-2x=13-3

3
Simplify  13−313-3  to  1010.
−2x=10-2x=10

4
Divide both sides by −2-2.
x=−102x=-\frac{10}{2}

5
Simplify  102\frac{10}{2}  to  55.
x=−5x=-5

Done

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