$-4 x+14 \leq 54$
\( \boxed{x \geq -10} \)
Step 1 :Subtract 14 from both sides: \( -4x \leq 40 \)
Step 2 :Divide both sides by -4 and reverse the inequality sign: \( x \geq -10 \)
Step 3 :\( \boxed{x \geq -10} \)