Answer
$x=-2$
Work Step by Step
$-4x+7=15$ $\longrightarrow$addition property
$-4x+7-7=15-7$ $\longrightarrow$combine like tems
$-4x=8$ $\longrightarrow$multiplication property
$-4x\div-4=8\div-4$ $\longrightarrow$divide
$x=-2$
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