Let me try this one because, for me it is something that really happens.
Jordan went to an art sale and bought a painting and then had it framed. She complained to me that the framing cost $12 more than the painting. The framed painting ended up costing her $78, how much did the framing cost?
Suppose that the painting cost her $p. The framing cost $12 more than $p so the framing cost $(p + 12). Thus together she paid
$p + $(p + 12) = $78
Solve for $p and then the framing cost $p+$12.