## Prealgebra (7th Edition)

$20-6x+4=-2x+18+2x$ $\longrightarrow$ combine like terms $24-6x=18$ $\longrightarrow$ addition property $24-6x-24=18-24$ $\longrightarrow$ combine like terms $-6x=-6$ $\longrightarrow$ multiplication property $-6x\div-6=-6\div-6$ $\longrightarrow$ divide $x=1$