\[-4x+14\le 54\]

1
Subtract 1414 from both sides.
4x5414-4x\le 54-14

2
Simplify  541454-14  to  4040.
4x40-4x\le 40

3
Divide both sides by 4-4.
x404x\ge -\frac{40}{4}

4
Simplify  404\frac{40}{4}  to  1010.
x10x\ge -10

Done

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