Answer
$y=3$
Work Step by Step
$7y+3=24$ $\longrightarrow$addition property
$7y+3-3=24-3$ $\longrightarrow$simplify
$7y=21$ $\longrightarrow$multiplication property
$7y\div7=21\div7$ $\longrightarrow$simplify
$y=3$
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